THIS AGREEEMENT is made on 28th February 2012 BETWEEN:

Exhibit 4.5

THIS AGREEEMENT is made on 28th February 2012

BETWEEN:

(1) BP EXPLORATION (ALASKA) INC. a Delaware corporation of 000 Xxxx Xxxxxx Xxxxxxxxx. Xxxxxxxxx, Xxxxxx 00000 (the “Company”); and

(2) XXXXX XXXXX XXXXX of 0 Xx. Xxxxx’x Xxxxxx, Xxxxxx, XX0X 0XX (the “Xx Xxxxx”).

Pursuant to an agreement dated 7th August 2000 (the “Employment Agreement”) the Company has employed Xx Xxxxx as a senior executive of the Company in accordance with the terms and conditions of the Employment Agreement. By an amending agreement dated 22nd February 2010, clause 4.3 of the Employment Agreement was amended to extend the term of employment to the close of BP p.l.c.’s annual general meeting in 2011 and by a further amending agreement on 21st February 2011 the Employment Agreement was amended to extend the term of employment to the close of BP p.l.c.’s annual general meeting in 2012.

As the parties now wish to further extend the term of Xx Xxxxx’x employment with the Company the PARTIES HEREBY AGREE as follows:

1. That clause 4 of the Employment Agreement be amended by deleting clause 4.3 of the Employment Agreement and replacing it with the following: “This Employment shall in any event terminate automatically at the close of BP p.l.c.’s annual general meeting in 2013.”

2 The other provisions of the Employment Agreement will remain in full force and effect and nothing in this Agreement is intended to amend any other provisions of the Employment Agreement.

3 This Agreement is governed by and shall be construed in accordance with the laws of the State of Delaware.

This Agreement has been executed by the parties hereto and is hereby delivered on the date first above written.

SIGNED by		) Xxxxxx Xxxx
For and on behalf of		)
BP EXPLORATION (ALASKA) INC.		)
In the presence of:		) Xxxxxx Xxxxxxxxxx
SIGNED by		)
XXXXX XXXXX XXXXX		) Xxxxx Xxxxx
In the presence of:		) Xxxxx Xxxxxxx

THIS AGREEMENT is made on 28th February 2012

BETWEEN:

(1) BP EXPLORATION (ALASKA) INC. a Delaware corporation of 000 Xxxx Xxxxxx Xxxxxxxxx. Xxxxxxxxx, Xxxxxx 00000 (the “Company”);

(2) BP p.l.c. an English registered company of 0 Xx. Xxxxx’x Xxxxxx, Xxxxxx XX0X 0XX (the “Parent”); and

(3) XXXXX XXXXX XXXXX of 0 Xx. Xxxxx’x Xxxxxx, Xxxxxx, XX0X 0XX (the “Xx Xxxxx”).

Pursuant to an agreement dated 7th August 2000 (the “Secondment Agreement”) the Company agreed to supply to the Parent, assistance by seconding its employee Xx. Xxxxx to the Parent in accordance with the terms and conditions of the Second Agreement. By an amending agreement dated 22nd February 2010, clause 7.3 of the Secondment Agreement was amended to extend the term of secondment to the close of the Parent’s annual general meeting in 2011 and by a further amending agreement on 21st February 2011 the term of the secondment was extended to the close of the Parent’s annual general meeting in 2012.

As the parties now wish to further extend the term of the secondment the PARTIES HEREBY AGREE as follows:

1. That clause 7 of the Secondment Agreement be amended by deleting clause 7.3 of the Secondment Agreement and replacing it with the following: “This Agreement shall terminate automatically at the close of Parent’s annual general meeting in 2013.”

2 The other provisions of the Secondment Agreement will remain in full force and effect and nothing in this Agreement is intended to amend any other provisions of the Secondment Agreement.

3 This Agreement is governed by and shall be construed in accordance with the laws of England and the parties to this Agreement submit to the exclusive jurisdiction of the English courts.

This Agreement has been executed by the parties hereto and is hereby delivered on the date first above written.

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SIGNED by		) Xxxxxx Xxxx
For and on behalf of		)
BP EXPLORATION (ALASKA) INC.		) Xxxxxx Xxxxxxxxxx
In the presence of:		)
SIGNED by		) Xxxxxx Xxxxxx
For and on behalf of		)
BP p.l.c.		)
In the presence of:		) Xxx Xxxxx
SIGNED by		) Xxxxx Xxxxx
XXXXX XXXXX XXXXX		)
In the presence of:		) Xxxxx Xxxxxxx

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