Common use of Table of Definitions Clause in Contracts

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement 4 Environmental Laws 28 Environmental Liabilities 28 Exchange Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 8

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Action 3 Affiliate 3 4 Agent 3 4 Agreement 1 Agreement Disputes 48 Allocation Committee 4 Allowable Cost Audit 44 Ancillary Agreements 3 4 Applicable HII Proportion 4 Applicable New NGC Proportion 4 Applicable Proportion 4 Assets 3 Bad Act 4 Assigned Action 6 Business 8 Business Day 3 6 Change of Control 6 Change of Control Triggering Event 7 Code 3 7 Consents 3 Contract 3 Contribution 1 CPR 27 7 Continuing Director 7 Credit Support Instruments 7 Determination Request 7 Dispute Notice 48 Distribution 1 Distribution Date 3 7 Distribution Ratio 4 Effective Time 4 7 Employee Matters Agreement 4 7 Environmental Laws 28 7 Environmental Liabilities 28 8 Exchange Act 4 8 Excluded Disputes 48 Excluded Retained Assets 8 Excluded Shipbuilding Assets 8 Fitch 8 Form 10 4 GAAP 4 8 Former Business 8 Governmental Approvals 4 9 Governmental Authority 4 9 GO-Zone Bonds 9 Group 4 9 Hazardous Substances 28 9 HII 1 HII Assigned Action 9 HII Balance Sheet 9 HII Common Stock 1 HII Credit Facility 9 HII Credit Support Instruments 25 HII Debt 9 HII Entities 9 HII Group 9 HII Indemnitees 30 HII Transferred Assets 10 Holding Company Reorganization 1 Holdings LLC I-1 Holdings LP I-1 Holdings LP Distribution I-2 Indemnifying Party 23 31 Indemnitee 23 31 Indemnity Payment 23 31 Information 4 10 Information Statement 4 10 Xxxxxxx Indemnity Agreement 10 Insurance Matters Agreement 10 Insurance Policies 10 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 10 Definition Page Internal Reorganization 10 IP License Agreement 10 IRS 5 Xxxxxx 00 XXXx 43 Law 5 11 Letter Subcontracts 43 Liabilities 5 Next Step Up Representatives 27 11 Litigation Management Agreement 11 Managing Party 35 Merger Sub 1 Xxxxx’x 11 Navy Guarantees 11 New NGC 1 New NGC Assigned Action 11 New NGC Board 11 New NGC Common Stock 12 New NGC Credit Support Instruments 24 New NGC Entities 12 New NGC Group 12 New NGC Indemnitees 30 New NGC Transferred Assets 12 NGC 1 NGC Board 12 NGC Charter Amendment 42 NGC Charter Amendment Proposal 42 NGC Credit Agreement I-1 NGSB 1 NGSC 1 NGTS 12 Non-Managing Party 12 Northrop Grumman 12 Northrop Grumman Board 12 Northrop Grumman Stockholders 12 NYSE 12 Opinion 12 P&I Agreements 12 Person 5 Proceeding 31 13 Rating Agencies 13 Rating Event 13 Record Date 13 Record Holders 5 13 Retained Assets 13 Retained Business 14 Retained Liabilities 14 Rules 48 S&P 15 SEC 5 Securities Act 6 15 Security Interest 15 Separation 15 Settlement Asset 44 Settlement Liability 44 Shared Action 15 Shared Gain 15 Shared Liability 15 Shipbuilding Assets 16 Shipbuilding Business 17 Shipbuilding Liabilities 17 Solicitation 43 Subsidiary 6 18 Tax or Matters Agreement 19 Taxes 6 Tax Sharing 19 Tax-Free Status 19 Team 19 Teaming Agreement 6 19 Third-Party Claim 24 31 Transferred Debt Proceeds I-2 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 819

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate Applicable Transfer Date 8 Welfare Plan 2 Benefit Plan 2 WMB 1 Benefits Commencement Date 2 WMB Benefit Plan 3 Agent Converted WPX Equity Compensation WMB DB Plans 3 Agreement 1 Ancillary Agreements Award 12 WMB DC Plan 3 Assets Delayed Transfer Employee 7 WMB Employee 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement 4 Environmental Laws 28 Environmental 1 WMB Employee Liabilities 28 Exchange Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 3 Employment Agreement 2 WMB Employment Agreement 3 Equity Compensation Awards 2 WMB Equity Compensation Award 12 ERISA 2 WMB Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information Fiscal 2011 Employee Bonuses 8 WMB Option 12 Former Employee 2 WMB RSUs 12 Plan Payee 2 WMB Welfare Plan 4 Information Statement Pre-2006 Options 13 Workers’ Compensation Event 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Separation Agreement 1 WPX 1 Definition Page IRS Definition Page WPX Benefit Plans 4 WPX Employment Agreement 4 WPX DC Plan 12 WPX Exchange Ratio 3, 5 Law 5 Liabilities 5 Next Step Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 Employee 4 WPX Group 7 5 WPX Indemnitees 22 Employee Liabilities 4 WPX Liabilities 7 WPX Notes 8Welfare Plan 5

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Action 3 Affiliate 3 4 Agent 3 4 Agreement 1 Agreement Disputes 47 Allocation Committee 4 Allowable Cost Audit 44 Ancillary Agreements 3 4 Applicable HII Proportion 4 Applicable New NGC Proportion 4 Applicable Proportion 4 Assets 3 Bad Act 4 Assigned Action 6 Business 8 Business Day 3 6 Change of Control 6 Change of Control Triggering Event 7 Code 3 7 Consents 3 Contract 3 Contribution 1 CPR 27 7 Continuing Director 7 Credit Support Instruments 7 Determination Request 7 Dispute Notice 47 Distribution 1 Distribution Date 3 7 Distribution Ratio 4 Effective Time 4 7 Employee Matters Agreement 4 7 Environmental Laws 28 7 Environmental Liabilities 28 8 Exchange Act 4 8 Excluded Disputes 47 Excluded Retained Assets 8 Excluded Shipbuilding Assets 8 Fitch 8 Form 10 4 GAAP 4 8 Former Business 8 Governmental Approvals 4 9 Governmental Authority 4 9 GO-Zone Bonds 9 Group 4 9 Hazardous Substances 28 9 HII 1 HII Assigned Action 9 HII Balance Sheet 9 HII Common Stock 1 HII Credit Facility 9 HII Credit Support Instruments 25 HII Debt 9 HII Entities 9 HII Group 10 HII Indemnitees 31 HII Transferred Assets 10 Holding Company Reorganization 1 Holdings LLC I-1 Holdings LP I-1 Holdings LP Distribution I-2 Indemnifying Party 23 31 Indemnitee 23 31 Indemnity Payment 23 31 Information 4 10 Information Statement 4 10 Xxxxxxx Indemnity Agreement 10 Insurance Matters Agreement 10 Insurance Policies 10 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 10 Definition Page Intercompany Debt Receivable I-1 Internal Reorganization 10 IP License Agreement 10 IRS 5 Xxxxxx 00 XXXx 43 Law 5 11 Letter Subcontracts 43 Liabilities 5 Next Step Up Representatives 27 11 Litigation Management Agreement 11 Managing Party 35 Merger Sub 1 Xxxxx’x 11 Navy Guarantees 11 New NGC 1 New NGC Assigned Action 11 New NGC Board 12 New NGC Common Stock 12 New NGC Credit Support Instruments 25 New NGC Entities 12 New NGC Group 12 New NGC Indemnitees 30 New NGC Transferred Assets 12 NGC 1 NGC Board 12 NGC Charter Amendment 42 NGC Charter Amendment Proposal 42 NGC Distribution I-1 NGSC 1 NGTS 12 Non-Managing Party 12 Northrop Grumman 12 Northrop Grumman Board 12 Northrop Grumman Stockholders 12 NYSE 12 Opinion 12 P&I Agreements 12 Person 5 Proceeding 31 13 Rating Agencies 13 Rating Event 13 Record Date 13 Record Holders 5 13 Retained Assets 13 Retained Business 14 Retained Cash I-2 Retained Liabilities 14 Rules 48 S&P 15 SEC 5 Securities Act 6 15 Security Interest 15 Separation 15 Settlement Asset 44 Settlement Liability 44 Shared Action 15 Shared Gain 15 Shared Liability 15 Shipbuilding Assets 16 Shipbuilding Business 17 Shipbuilding Liabilities 17 Solicitations 43 Subsidiary 6 19 Tax or Matters Agreement 19 Taxes 6 Tax Sharing 19 Tax-Free Status 19 Team 19 Teaming Agreement 6 19 Third-Party Claim 24 32 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 819

Table of Definitions. The following terms have the meanings set forth on in the pages Sections referenced below: Definition Page Affiliate 3 Agent 3 Location Acquisition Proposal 6.4 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Preamble Alternative Financing 6.12 AMACAI Recitals AMACAI Merger Recitals AMACAI Merger Agreement Recitals AMACAI Merger Sub Recitals Balance Sheet 4.6 Cancelled Option 3.3 Cancelled Shares 3.1 Certificate of Merger 2.2 Certificates 3.4 Closing 2.2 Closing Capitalization Schedule 6.15 Closing Date 3 Distribution Ratio 4 2.2 Closing Failure Fee 10.3 Closing Statement 3.8 Common Stock Recitals Company Preamble Company Registered IP 4.14 Company Stockholder Approval 4.2 Competitor 4.18 Confidentiality Agreement 6.8 Consent Deadline 6.5 Consenting Stockholders Recitals Copyrights 1.1 Core Reps 9.1 Deductible 9.4 DGCL Recitals Disclosure Schedule Article IV Dissenting Shares 3.2 Effective Time 4 2.2 Employee Matters Holder Agreements Recitals ERISA 4.10 Escrow Funds 3.5 Estimated Closing Cash 6.15 Estimated Closing Non-Cash Working Capital 6.15 Financial Statements 4.6 Financing 5.7 Financing Agreement 4 Environmental Laws 28 Environmental Liabilities 28 Exchange 6.12 Financing Commitment 5.7 Holder Agreements Recitals Holder Group 6.18 HSR Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 4.3 Inbound License Agreements 4.14 Definition Location Indebtedness Discharge Amount 6.13 Indemnified Party 9.7 Indemnifying Party 23 Indemnitee 23 9.7 Indemnity Payment 23 Information 4 Escrow Fund 3.5 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page 4.20 Institutional Holder Agreements Recitals Interim Financial Statements 4.6 IRS 5 Law 5 Liabilities 5 Next Step Up 4.10 Losses 9.2 Majority Holders 3.7 Marketing Period 6.12 Marks 1.1 Material Contracts 4.17 Merger Recitals Merger Sub Preamble NPI 4.14 Offer Letters Recitals Outbound License Agreements 4.14 Outside Date 10.1 Parent Preamble Parent Indemnitees 9.2 Patents 1.1 Paying Agent 3.4 Payment Fund 3.4 Permits 4.8 Permitted Encumbrances 4.12 Plans 4.10 Post-Closing Plans 6.16 Purchase Price Adjustment Escrow Fund 3.5 Record Date Recitals Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 6.3 Required Information 6.12 Shares 3.1 Solvent 5.8 Stockholder Representative 3.7 Stockholder Representative Escrow Fund 3.5 Surviving Corporation 2.1 Tail Policy 6.11 Tax or Taxes 6 Claim 7.4 Tax Sharing Agreement 6 Third-Rep 9.1 Third Party Claim 24 Transition Services 9.7 Trade Secrets 1.1 Transfer Tax Returns 7.6 Unresolved Objections 3.8 Waiver and Termination Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 84.2 Willful Breach 10.2

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Administrative Services Agreement 3 Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 9 Business Day 3 4 Code 3 4 Consents 3 4 Contract 3 4 Contribution 1 CPR 27 35 Distribution 1 Distribution Agent 17 Distribution Date 3 Distribution Ratio 4 Effective Time Date 4 Employee Matters Agreement 4 Environmental Laws 28 36 Environmental Liabilities 28 36 Exchange Act 4 Form 10 Financial Statements 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 36 Indemnifying Party 23 31 Indemnitee 23 31 Indemnity Payment 23 31 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 10 Intended Transferor 9 10 IPO 1 Definition Page IPO Closing Date 5 IPO Prospectus 5 IPO Registration Statement 5 IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 35 Ordinary Course of Business 6 Person 5 6 Proceeding 31 39 Record Holders 5 Date 6 Registration Rights Agreement 6 Regulation S-K 6 Regulation S-X 6 SEC 5 6 Securities Act 6 Subsidiary 6 Tax Control 6 Tax or Taxes 6 Tax Sharing Agreement 6 7 Third-Party Claim 24 32 Transition Services Agreement 6 7 Underwriters 7 Underwriting Agreement 7 WMB 1 WMB Annual Statements 19 WMB Board 6 7 WMB Business 6 7 WMB Common Stock 6 7 WMB Entities 6 7 WMB Group 6 7 WMB Indemnitees 21 29 WMB Liabilities 6 7 WMB Shared Contract 7 Definition Page WMB’s Auditors 18 WPX 1 WPX Assets 7 WPX Borrowing 7 8 WPX Business 7 8 WPX Common Stock 1 8 WPX Credit Facility 7 8 WPX Entities 7 8 WPX Group 7 8 Definition Page WPX Indemnitees 22 30 WPX Liabilities 7 8 WPX Notes 89 WPX Shared Contract 9 WPX Transfer Agent 9 WPX Voting Stock 20 WPX’s Auditors 18

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate 3 Law 5 Agent 3 Liabilities 5 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement 4 Environmental Laws 28 Environmental Liabilities 28 Exchange Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 Ancillary Agreements 3 Person 5 Assets 3 Proceeding 31 Bad Act 8 Record Date 5 Business Day 3 Record Holders 5 Code 3 SEC 5 Consents 3 Securities Act 6 Contract 3 Subsidiary 6 Contribution 1 Tax or Taxes 6 CPR 27 Tax Sharing Agreement 6 Distribution 1 Third-Party Claim 24 Distribution Date 3 Transition Services Agreement 6 Distribution Ratio 4 WMB 1 Effective Time 4 WMB Board 6 Employee Matters Agreement 4 WMB Business 6 Environmental Laws 28 WMB Common Stock 6 Environmental Liabilities 28 WMB Entities 6 Exchange Act 4 WMB Group 6 Form 10 4 WMB Indemnitees 21 GAAP 4 WMB Liabilities 6 Governmental Approvals 4 WPX 1 Governmental Authority 4 WPX Assets 7 Group 4 WPX Borrowing 7 Hazardous Substances 28 WPX Business 7 Indemnifying Party 23 WPX Common Stock 1 Indemnitee 23 WPX Credit Facility 7 Indemnity Payment 23 WPX Entities 7 Information 4 WPX Group 7 Information Statement 4 WPX Indemnitees 22 Insurance Proceeds 5 WPX Liabilities 7 Intended Transferee 9 WPX Notes 88 Intended Transferor 9

Table of Definitions. The following terms have the meanings set forth on in the pages referenced set forth below: Definition Page Affiliate 3 Agent 3 Adjusted Estimated Total Working Capital 18 Adjusted Purchase Price 17 Adjusted Working Capital 17 Alternate Target Sale 14 Assumed Liabilities 15 Balance Sheet 26 Casualty Loss 44 Claims Deadline 66 Closing 21 Closing Allocated Price 21 Closing Date 22 Contest 53 CTF 2 CTF Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 2 CTF Level Data 27 Distribution 1 Distribution De Minimus Amount 66 Deposit 17 Designee 2 Dispute Notice 65 Effective Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement 4 Environmental Laws 28 Environmental 22 Employment Practices Liabilities 28 Exchange Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 12 Estoppel Certificates 50 Excluded Liabilities 27 Fee Property 14 Fee Sale 14 Group 4 Hazardous Substances 28 A Hotels 44 Group B Hotels 45 Hotel Level Data 26 Indemnification Limit 66 Indemnified Party 63 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 64 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step Up 49 Initial Required Working Capital 18 Intercompany Payables 51 Lease Assignment & Sale 15 Leasehold Property 15 Liability Accruals 51 Losses 62 Mandatory Consent Hotel 58 Xxxxxxxx 0 Xxxxxxxx Xxxxxxxxx 00 Marriott Created Liens 37 Marriott Indemnified Parties 63 Mirror Claim 61 New Title Matters 57 Objection Period 55 Pass Through Covenants 61 Pass Through Representations 61 PIP Amount 16 Potential Contributor 67 Pre-Closing Tax Period 52 Preliminary Allocated Price 16 Pro Forma 55 Proposed Conveyance Documents 58 Purchaser 2 Purchaser Indemnified Parties 62 Purchaser’s Objections 55 Purchaser’s Out of Pocket Costs 22 Real Properties 54 Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-46 Requirements 55 SD Letters of Credit 51 Straddle Period 52 Structural and Environmental Consultants 20 Surveyor 54 Termination Date 70 Third Party Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 863 Threshold Amount 66 Title Cure Period 56 Title Materials 54 Tradenames 30 Transaction 16 Unadjusted Purchase Price 17 Vinoy 17

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate 3 Agent 3 AAA 15 All Risk 32 Award 34 Base Library Maintenance Obligations 22 City 1 City Library Utility Cost 26 City Percentage of Total Library Square Footage 7 City’s Base Library Maintenance Funds 23 Claims 31 Condemnation 34 Condemnor 34 Date of Taking 34 Designated Quiet Areas 18 Development Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement 4 Environmental Laws 28 Environmental Liabilities 28 Exchange Act 4 Form Easement Rights 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 FTE 21 Hazardous Substances 28 Indemnifying 10 JAMS 15 Joint Functions 21 Joint Library Committee 14 Joint Library Subcommittee 14 Library Bookstore 35 Library Retail Space 36 Library Trust Account 23 Library Utilities 25 Minimum Default Amount #1 39 Minimum Default Amount #2 39 Monetary Default 22, 38 Multi-Purpose Rooms 9 Net Funds 20, 37, 38 Non-Monetary Default 38 Non-Violation Dispute 15 Non-Withdrawing Party 42 Operating Agreement 1 Preliminary Notice 42 RA 1 Roof Decks 9 Taking 34 Termination Agreement 46 The Master Floor Plans 7 Total City Square Footage 0 Xxxxx Xxxxxxx Xxxxxx Footage 7 Total University Square Footage 7 University 1 University Base Library Maintenance Funds 23 Indemnitee 23 Indemnity Payment 23 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-University Percentage of Total Library Square Footage 7 Violation Dispute 15 Withdrawal Resolution 43 Withdrawal Right 42 Withdrawing Party Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 842

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Applicable Transfer Date 3 Distribution Ratio 4 Effective Time 4 7 Benefit Plan 2 Converted HII Equity Compensation Award 18 Delayed Transfer Employee 7 Employee Matters Agreement 1 Employment Agreement 2 ERISA 2 Estimated Retirement Plan Transfer Amount 11 Exchange Ratio 18 Final Nonqualified Plan Transfer Amount 16 Final Nonqualified Plan Transfer Date 16 Final Retirement Plan Transfer Amount 11 Final Transfer Date 11 HII 1 HII Benefit Plans 3 HII Common Stock 18 HII Employee 3 HII Employee Liabilities 3 HII Employment Agreement 3 HII Group 3 HII Master Trust 11 HII Retained Benefit Plan 3 HII Retained DB Plans 10 HII Retained DC Plans 13 HII Retained Nonqualified Plans 15 HII Retained Welfare Plans 8 HII Retiree 3 HII Spinoff DB Plans 10 HII Spinoff DC Plans 13 HII Spinoff Nonqualified Plans 15 Definition Page HII Spinoff Plans 4 Environmental Laws 28 Environmental HII Spinoff Welfare Plans 9 HII Welfare Plan 4 HRA 9 Initial Nonqualified Plan Transfer Amount 16 New NGC 1 New NGC Benefit Plan 4 New NGC CPU 18 New NGC Employee Liabilities 28 Exchange Act 4 Form 10 New NGC Employment Agreement 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 New NGC Equity Compensation Award 18 New NGC Grantor Trust 15 New NGC Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information New NGC Option 18 New NGC Retiree 4 Information Statement New NGC RPSR 18 New NGC RSR 18 New NGC Welfare Plan 4 Insurance Proceeds NGC 1 Nonqualified Plan True-Up Amount 16 Original Group 8 Plan Payee 4 Separation Agreement 1 Split DB Plans 10 Split DC Plans 13 Split Nonqualified Plans 15 Split Plans 5 Intended Transferee Split Welfare Plans 9 Intended Transferor 9 Definition Page IRS True-Up Amount 12 Vendor Contract 21 Welfare Plan 5 Law 5 Liabilities 5 Next Step Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 8Workers’ Compensation Event 5

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Action 3 Administrative Services Agreement 3 Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 9 Business Day 3 4 Code 3 4 Consents 3 4 Contract 3 4 Contribution 1 CPR 27 34 Distribution 1 Distribution Agent 17 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement Date 4 Environmental Laws 28 35 Environmental Liabilities 28 35 Exchange Act 4 Form 10 Financial Statements 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 36 Indemnifying Party 23 30 Indemnitee 23 30 Indemnity Payment 23 30 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 10 Intended Transferor 9 10 IPO 1 Definition Page IPO Closing Date 5 IPO Prospectus 5 IPO Registration Statement 5 IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 34 Ordinary Course of Business 5 Person 5 6 Proceeding 31 39 Record Holders 5 Date 6 Registration Rights Agreement 6 Regulation S-K 6 Regulation S-X 6 SEC 5 6 Securities Act 6 Subsidiary 6 Tax Control 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 31 Transition Services Agreement 6 7 Underwriters 7 Underwriting Agreement 7 WMB 1 WMB Annual Statements 19 WMB Board 6 7 WMB Business 6 7 WMB Common Stock 6 7 WMB Entities 6 7 WMB Group 6 7 WMB Indemnitees 21 29 WMB Liabilities 6 7 WMB Shared Contract 7 Definition Page WMB’s Auditors 19 WPX 1 WPX Assets 7 WPX Borrowing 7 8 WPX Business 7 8 WPX Class A Common Stock 8 WPX Class B Common Stock 8 WPX Common Stock 1 8 WPX Credit Facility 7 8 WPX Entities 7 8 Definition Page WPX Group 7 8 WPX Indebtedness 8 WPX Indemnitees 22 30 WPX Liabilities 7 8 WPX Notes 89 WPX Shared Contract 9 WPX Transfer Agent 9 WPX Voting Stock 20 WPX’s Auditors 18

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Administrative Services Agreement 3 Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 9 Business Day 3 4 Code 3 4 Consents 3 4 Contract 3 4 Contribution 1 CPR 27 35 Distribution 1 Distribution Agent 17 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement Date 4 Environmental Laws 28 36 Environmental Liabilities 28 36 Exchange Act 4 Form 10 Financial Statements 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 36 Indemnifying Party 23 31 Indemnitee 23 31 Indemnity Payment 23 31 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 10 Intended Transferor 9 10 IPO 1 Definition Page IPO Closing Date 5 IPO Prospectus 5 IPO Registration Statement 5 IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 35 Ordinary Course of Business 5 Person 5 6 Proceeding 31 39 Record Holders 5 Date 6 Registration Rights Agreement 6 Regulation S-K 6 Regulation S-X 6 SEC 5 6 Securities Act 6 Subsidiary 6 Tax Control 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 32 Transition Services Agreement 6 7 Underwriters 7 Underwriting Agreement 7 WMB 1 WMB Annual Statements 19 WMB Board 6 7 WMB Business 6 7 WMB Common Stock 6 7 WMB Entities 6 7 WMB Group 6 7 WMB Indemnitees 21 29 WMB Liabilities 6 7 WMB Shared Contract 7 Definition Page WMB’s Auditors 18 WPX 1 WPX Assets 7 WPX Borrowing 7 8 WPX Business 7 8 WPX Common Stock 1 8 WPX Credit Facility 7 8 WPX Entities 7 8 WPX Group 7 8 Definition Page WPX Indemnitees 22 30 WPX Liabilities 7 8 WPX Notes 89 WPX Shared Contract 9 WPX Transfer Agent 9 WPX Voting Stock 20 WPX’s Auditors 18

Table of Definitions. The following listing identifies additional defined terms have used in this Agreement and the meanings set forth page numbers hereof on the pages referenced below: Definition Page Affiliate 3 Agent 3 which they are defined. 280G Approval 55 Acquiring Parties 1 Acquiror 1 Acquiror Board 38 Acquiror Financial Statements 40 Acquiror Relevant Group 43 Acquiror Stockholders Meeting 38 Acquisition Agreement 54 Acquisition Proposal 53 Action 64 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Arbiter 17 Articles of Merger 12 Certificates 13 Claim Notice 61 Claim Response 61 Closing 48 Closing Date 3 Distribution Ratio 4 48 Closing Date Net Cash Position 17 Confidential Information 53 Confidentiality Agreement 53 Damages 59 Dissenting Shares 15 Dissenting Stockholders 15 Effective Time 4 Employee Matters Agreement 4 12 Escrow Merger Consideration 13 Estimated Statement of Net Cash Position 16 Expiration Date 63 Final Statement of Net Cash Position 16 Governmental Clearances 52 Holder 14 Indemnified Acquiror Party 59 Indemnified Party 61 Indemnified Target Party 61 Indemnitor 61 Initial Merger Consideration 13 IRS 31 Joinder 46 Latest Balance Sheet 22 Latest Balance Sheet Date 22 Liquidated Claim Notice 61 Maximum Indemnification Amount 62 Merger 1 Merger Sub 1 Net Cash Adjustment 17 Operating Plan 50 Parties 1 Post-Closing Payments 16 Response Period 61 Securityholder Documents 14 Share Issuance 38 Statement of Expenses 55 Stockholders’ Representative 69 Straddle Period 57 Surviving Corporation 12 Takeover Laws 20 Target 1 Target Adverse Recommendation Change 54 Target Board 15 Target Board Recommendation 20 Target Customer Contracts 27 Target Domain Names 26 Target Environmental Laws 28 Environmental Liabilities 28 Exchange Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Condition 25 Target Financial Statements 22 Target Relevant Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 33 Target Specified Contracts 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Threshold Amount 62 Transaction Expenses 54 Unliquidated Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 861 WARN 30 WBCA 1

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Administrative Services Agreement 3 Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 9 Business Day 3 4 Code 3 4 Consents 3 4 Contract 3 4 Contribution 1 CPR 27 34 Distribution 1 Distribution Agent 17 Distribution Date 3 Distribution Ratio 4 Effective Time 4 Employee Matters Agreement Date 4 Environmental Laws 28 35 Environmental Liabilities 28 35 Exchange Act 4 Form 10 Financial Statements 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 36 Indemnifying Party 23 30 Indemnitee 23 30 Indemnity Payment 23 30 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 10 Intended Transferor 9 10 IPO 1 Definition Page IPO Closing Date 5 IPO Prospectus 5 IPO Registration Statement 5 IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 34 Ordinary Course of Business 5 Person 5 6 Proceeding 31 39 Record Holders 5 Date 6 Registration Rights Agreement 6 Regulation S-K 6 Regulation S-X 6 SEC 5 6 Securities Act 6 Subsidiary 6 Tax Control 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 31 Transition Services Agreement 6 7 Underwriters 7 Underwriting Agreement 7 WMB 1 WMB Annual Statements 19 WMB Board 6 7 WMB Business 6 7 WMB Common Stock 6 7 WMB Entities 6 7 WMB Group 6 7 WMB Indemnitees 21 29 WMB Liabilities 6 7 WMB Shared Contract 7 Definition Page WMB’s Auditors 19 WPX 1 WPX Assets 7 WPX Borrowing 7 8 WPX Business 7 8 WPX Class A Common Stock 8 WPX Class B Common Stock 8 WPX Common Stock 1 8 WPX Credit Facility 7 8 WPX Entities 7 8 Definition Page WPX Group 7 8 WPX Indebtedness 8 WPX Indemnitees 22 30 WPX Liabilities 7 8 WPX Notes 89 WPX Shared Contract 9 WPX Transfer Agent 9 WPX Voting Stock 20 WPX’s Auditors 18

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate Agreement, 1 MTA Construction Deadline, 4 Arch, 1 NCI, 1 Arch Group, 8 Nextel, 1 Arch Management Agreement, 13 PageNet SMR, 1 Assignment and Assumption Agreements, 32 Permitted Liens, 10 Assumed Liabilities, 3 Agent Person, 5 Assumed Management Agreement, 21 Preferred Stock Purchase Agreement, 1 Bank Consents, 2 Proposal, 19 Bankruptcy, 16 Purchase Price, 4 Certificate of Designations, 30 Purchased Assets, 3 Agreement Closing, 5, 6 Registration Rights Agreement, 29 Closing Date, 5, 6 Restricted License, 5 Code, 12 Secured Loan, 1 Ancillary Agreements Communications Act, 3 Assets Secured Note, 2 Consents, 16 Security Agreement, 2 Contracts, 11 Series C Consent, 2 Costs, 25 Series F Preferred Stock, 1 Credit Agreement, 23 Series F Preferred Stock Assignment Delivered, 4 Agreement, 31 Disclosure Schedule, 1 Signing Date, 1 Employee Plan, 12 SMR, 13 Excluded Liabilities, 3 Bad Act 8 Business Day SMR License, 13 FCC, 1 SMR System, 13 FCC License, 13 SMR Units, 13 Final Order, 5 SPV, 1 Funding Date, 2 SPV Holdings, 1 GAAP, 10 STA, 14 Guaranty, 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Date 3 Distribution Ratio Subsequent Closing, 6 HSR Act, 25 Tax Clearances, 37 Initial Closing, 6 Terminating Nextel Breach, 38 IRS, 4 Effective Time 4 Employee Matters Agreement 4 Environmental Laws 28 Environmental Liabilities 28 Exchange Act 4 Form 10 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 Transition Services Claim, 26 Knowledge, 42 Third-Party Claim, 26 Licenses, 1 Third-Party Management Agreement, 13 Liens, 3 Transaction Documents, 30 Loans, 2 Undelivered License Amount, 6 Management Agreements, 3 Unsecured Loan, 2 Minimum License Condition, 5 Unsecured Note, 2 Widely Dispersed MTAs, 21 EXHIBITS Exhibit A Preferred Stock Purchase Agreement 6 WMB Board 6 WMB Business 6 WMB Common Exhibit B Unsecured Note Exhibit C Bank Consents Exhibit D Series C Consent Exhibit E SPV Bill of Sale and General Assxxxxent Exhibit F Secured Note Exhibit G Security Agreement Exhibit I Opinion of Wilkinson Barker Knauer, LLP, xxxxxxx xx Xxxh, XxxxNet SMR, SPV Holdings and SPV to be Rendered on Funding Date Relating to FCC Matters Exhibit J Opinion of Morris, Nichols, Arsht & Tunnel, counsel to Arch, PageNet SMR, SPV Holdings and SPV to be Rendered on Funding Date Relating to Authority to File Matters Exhibit K Opinion of Morris, Nichols, Arsht & Tunnel, counsel to Arch, PageNet SMR, SPV Holdings and SPV to be Rendered on Funding Date Relating to SPV Limited Liability Company Matters Exhibit L Opinion of Hale and Dorr LLP, counsel tx Xxch, PxxxXet SMR, SPV Holdings and SPV to be Rendered on Funding Date Relating to True Sale Matters Exhibit M Opinion of Hale and Dorr LLP, counsel tx Xxch, PxxxXet SMR, SPV Holdings and SPV to be Rendered on Funding Date Relating to Non-Consolidation Matters Exhibit N Opinion of Hale and Dorr LLP, counsel tx Xxch, PxxxXet SMR, SPV Holdings and SPV to be Rendered on Funding Date Relating to Corporate Matters Exhibit O Registration Rights Agreement Exhibit P Asset Purchase Agreement by and between PageNet SMR and SPV Exhibit Q PageNet SMR Bill of Sale and General Assxxxxent Exhibit R Certificate of Designations Exhibit S Series F Preferred Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 8Assignment and Assumption Agreement Exhibit T Opinion of Wilkinson Barker Knauer, LLP, xxxxxxx xx Xxxh, XxxxNet SMR, SPV Holdings and SPV to be Rendered on Closing Relating to FCC Matters ASSET ACQUISITION AGREEMENT This Asset Acquisition Agreement ("Agreement") is dated as of January 24, 2001 (the "Signing Date") and is by and among UNRESTRICTED SUBSIDIARY FUNDING COMPANY ("Nextel") a Delaware corporation, and an indirect, wholly owned subsidiary of Nextel Communications, Inc. ("NCI"), and ARCH WIRELESS, INC., a Delaware corporation ("Arch"), PAGENET SMR SUB, INC., a Delaware corporation and a direct, wholly owned subsidiary of Arch ("PageNet SMR"), AWI SPECTRUM CO. HOLDINGS, INC., a Delaware corporation and a direct, wholly owned subsidiary of Arch ("SPV Holdings"), and AWI SPECTRUM CO., LLC, a Delaware limited liability company and a direct, wholly owned subsidiary of SPV Holdings ("SPV").

Table of Definitions. The following terms have the meanings set forth on the pages referenced below: Definition Page Affiliate 3 Agent 3 Agreement 1 Ancillary Agreements 3 Assets 3 Bad Act 8 Business Day 3 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Applicable Transfer Date 3 Distribution Ratio 4 Effective Time 4 7 Benefit Plan 2 Converted HII Equity Compensation Award 18 Delayed Transfer Employee 7 Employee Matters Agreement 1 Employment Agreement 2 ERISA 2 Estimated Retirement Plan Transfer Amount 11 Exchange Ratio 18 Final Nonqualified Plan Transfer Amount 16 Final Nonqualified Plan Transfer Date 16 Final Retirement Plan Transfer Amount 11 Final Transfer Date 11 HII 1 HII Benefit Plans 2 HII Common Stock 18 HII Employee 3 HII Employee Liabilities 3 HII Employment Agreement 3 HII Group 3 HII Master Trust 10 HII Retained Benefit Plan 3 HII Retained DB Plans 10 HII Retained DC Plans 13 HII Retained Nonqualified Plans 15 HII Retained Welfare Plans 8 HII Retiree 3 HII Spinoff DB Plans 10 HII Spinoff DC Plans 13 HII Spinoff Nonqualified Plans 16 HII Spinoff Plans 4 Environmental Laws 28 Environmental HII Spinoff Welfare Plans 8 Definition Page HII Welfare Plan 4 HRA 9 Initial Nonqualified Plan Transfer Amount 16 New NGC 1 New NGC Benefit Plan 4 New NGC CPU 18 New NGC Employee Liabilities 28 Exchange Act 4 Form 10 New NGC Employment Agreement 4 GAAP 4 Governmental Approvals 4 Governmental Authority 4 New NGC Equity Compensation Award 18 New NGC Grantor Trust 15 New NGC Group 4 Hazardous Substances 28 Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 Information New NGC Option 18 New NGC Retiree 4 Information Statement New NGC RPSR 18 New NGC RSR 18 New NGC Welfare Plan 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 Liabilities 5 Next Step NGC 1 Nonqualified Plan True-Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 Subsidiary 6 Tax or Taxes 6 Tax Sharing Agreement 6 Third-Party Claim 24 Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Amount 17 Original Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 8Plan Payee 4 Separation Agreement 1 Split DB Plans 10 Split DC Plans 13 Split Nonqualified Plans 16 Split Plans 4 Split Welfare Plans 8 True-Up Amount 11 Vendor Contract 21 Welfare Plan 5 Workers’ Compensation Event 5

Table of Definitions. The following terms have the meanings set forth on in the pages Sections referenced below: Definition Page Action 1.1 ADEQ 1.1 Adjustment Statement 2.11(b) Affiliate 3 Agent 3 1.1 Agreement 1 Preamble Allocation Schedule 6.1 Alternative Transaction 5.19 Ancillary Agreements 3 Assets 3 Bad Act 8 1.1 Ancillary IP Rights 1.1 Anti-Corruption Laws 3.11(a) Antitrust Authority 1.1 Antitrust Information or Document Request 1.1 Antitrust Law 1.1 Assignment and Assumption Agreement 1.1 Assumed Environmental Liabilities 1.1 Balance Sheet Date 1.1 Bxxx of Sale 1.1 Business 1.1 Business Benefit Plan 1.1 Business Day 3 1.1 Business Employees 1.1 Business Intellectual Property 2.1(b) Business Patents 3.15(a) Business Permits 2.1(f) Business Registered IP 3.15(a) Business Registered Marks 3.15(a) Buyer Preamble Buyer Benefit Plans 5.6(c) Buyer Fundamental Representations 1.1 Buyer Indemnified Parties 8.2 Buyer Material Adverse Effect 1.1 Buyer Parent Preamble Buyer Savings Plan 5.6(d) Cash 1.1 Change of Control 5.15(a) Closing 2.8 Closing Date 2.8 Closing Date Balance Sheet 2.11(b) Closing Legal Impediment 7.1(a) Closing Purchase Price 2.6 Code 3 Consents 3 Contract 3 Contribution 1 CPR 27 Distribution 1 Distribution Date 3 Distribution Ratio 4 1.1 Competing Activity 5.15(a) Confidential Information 1.1 Confidentiality Agreement 5.8 Continuing Clients 10.21(a) Contracts 1.1 control 1.1 controlled by 1.1 Copyrights 1.1 Cxxxxxxx Facilities 1.1 Cxxxxxxx Sublease 1.1 CTO Supply Agreement 1.1 Current Assets 1.1 Current Liabilities 1.1 Data Room 1.1 Deductible 8.6(a) Deferred Compensation Plan 3.16(k) Disclosure Schedules Article III Dispute Notice 2.11(d) Effective Time 4 1.1 Employee Matters Agreement 4 Plans 1.1 Encumbrance 1.1 Environmental Indemnity Matter 8.5 Environmental Laws 28 1.1 Environmental Liabilities 28 1.1 Environmental Permits 3.17(a) ERISA 1.1 Estimated Adjustment Statement 2.7 Estimated Net Working Capital 2.7 Estimated Net Working Capital Deficit 1.1 Estimated Net Working Capital Surplus 1.1 Exchange Act 4 Form 10 4 1.1 Excluded Assets 2.2 Excluded Environmental Liabilities 1.1 Excluded Intellectual Property 1.1 Excluded Liabilities 2.4 Excluded Names 5.11 Financial Statements 1.1 Fundamental Representations 1.1 GAAP 4 Governmental Approvals 4 1.1 Governmental Authority 4 Group 4 1.1 GP Real Property 1.1 Guaranteed Obligations 10.18(a) Hazardous Substances 28 Substance 1.1 HSR Act 3.5 Indebtedness 1.1 Indemnified Guarantees 5.10(b) Indemnified Party 8.4(a) Indemnifying Party 23 Indemnitee 23 Indemnity Payment 23 8.4(a) Independent Accountant 2.11(c) Intellectual Property 1.1 Intellectual Property Transfer and License Agreement 1.1 Inventory 2.1(e) IRS 1.1 Knowledge 1.1 Known 1.1 Law 1.1 Leased Real Property 3.14(b) Liability 1.1 Losses 1.1 Marks 1.1 Material Adverse Effect 1.1 Material Contracts 3.18(a) Merchant CTO Business 1.1 Mining Products 1.1 Net Working Capital 1.1 Net Working Capital Deficit 2.11(f)(ii) Net Working Capital Surplus 2.11(f)(i) Net Working Capital Target 1.1 Oilfield Products 1.1 Order 1.1 Other Businesses 1.1 Outside Date 9.1(c) Owned Real Property 3.14(a) Paper Mill Services Agreement 1.1 Patents 1.1 Per-Claim Threshold 8.6(a) Permits 3.9(b) Permitted Encumbrance 1.1 Person 1.1 Potential Contributor 8.7 primary related 1.1 Product 1.1 Proprietary Information 4 Information Statement 4 Insurance Proceeds 5 Intended Transferee 9 Intended Transferor 9 Definition Page IRS 5 Law 5 1.1 Protected Material 10.21(b) Purchase Price 1.1 Purchase Price Adjustment 2.11(a) Railcar Lease Agreement 1.1 Railcar Riders 1.1 Real Property 2.2(i) Regulatory Termination Amount 9.2(a)(i) Release 1.1 Remedial Action 1.1 Representatives 5.2(a) Schedule Update 5.3 Seller Preamble Seller Fundamental Representations 1.1 Seller Indemnified Parties 8.3 Seller Parent Preamble Seller Pension Plan 5.6(d) Seller Savings Plan 5.6(d) Shared Contracts 1.1 Shared Services Agreement 1.1 Site Security Agreement 1.1 Specified Ancillary Agreements 1.1 Specified Consents 1.1 Specified Deferred Compensation Plan 5.6(d) Straddle Environmental Liabilities 5 Next Step Up Representatives 27 Person 5 Proceeding 31 Record Holders 5 SEC 5 Securities Act 6 1.1 Subsidiary 6 1.1 Tax or Return 1.1 Taxes 6 Tax Sharing Agreement 6 Third-1.1 Taxing Authority 1.1 Termination Update 5.3 Third Party 1.1 Third Party Claim 24 8.4(a) TOFRAC Plant Real Property 1.1 Toll Manufacturing Agreement 1.1 Trade Controls 3.11(b) Transfer Taxes 6.3 Transferred Assets 2.1 Transferred Contracts 2.1(a) Transferred Employees 5.6(a) Transition Services Agreement 6 WMB Board 6 WMB Business 6 WMB Common Stock 6 WMB Entities 6 WMB Group 6 WMB Indemnitees 21 WMB Liabilities 6 WPX 1 WPX Assets 7 WPX Borrowing 7 WPX Business 7 WPX Common Stock 1 WPX Credit Facility 7 WPX Entities 7 WPX Group 7 WPX Indemnitees 22 WPX Liabilities 7 WPX Notes 81.1 Treasury Regulations 1.1 under common control with 1.1 WARN Act 5.6(e)