Common use of Confidentiality and Public Announcements Clause in Contracts

Confidentiality and Public Announcements. 18.1 Subject to Clauses 18.4 and 18.5, the Contractor and the National Petroleum Agency shall keep information furnished to each other in connection with Petroleum Operations and all plans, maps, drawings, designs, data, scientific, technical and financial reports and other data and information of any kind or nature relating to Petroleum Operations, including any discovery of Petroleum, as strictly confidential and shall ensure that their entire or partial contents shall under no circumstances be disclosed in any announcement to the public or to any third party without the prior written consent of the other. With regard to data about aspects of geology, reservoir engineering or production engineering from reports or other material submitted to public authorities, the duty of secrecy shall have the following duration calculated from the time when the data became available to the contractor: - 2 years for data which are not commercially available, which are owned by the contractor and which originate from the contract area in question, - 10 years for data, which have been commercially available, from the time when they became available to the contractor, - 5 years for other data. The provisions of this Clause 18 shall not apply to disclosure to:

Confidentiality and Public Announcements. 18.1 Subject to Clauses 18.4 and 18.5, the Contractor and the National Petroleum Agency shall keep information furnished to each other in connection with Petroleum Operations and all plans, maps, drawings, designs, data, scientific, technical and financial reports and other data and information of any kind or nature relating to Petroleum Operations, including any discovery of Petroleum, as strictly confidential and shall ensure that their entire or partial contents shall under no circumstances be disclosed in any announcement to the public or to any third party without the prior written consent of the other. With regard to data about aspects of geology, reservoir engineering or production engineering from reports or other material submitted to public authorities, the duty of secrecy shall have the following duration calculated from the time when the data became available to the contractorContractor: - 2 years for data which are not commercially available, which are owned by the contractor Contractor and which originate from the contract area Contract Area in question, - 10 years for data, which have been commercially available, from the time when they became available to the contractor, - 5 years for other data. The provisions of this Clause 18 shall not apply to disclosure to:Contractor,

Confidentiality and Public Announcements. 18.1 Subject to Clauses 18.4 and 18.5, the Contractor and the National Petroleum Agency shall keep information furnished to each other in connection with Petroleum Operations and all plans, maps, drawings, designs, data, scientific, technical and financial reports and other data and information of any kind or nature relating to Petroleum Operations, including any discovery of Petroleum, as strictly confidential and shall ensure that their entire or partial contents shall under no circumstances be disclosed in any announcement to the public or to any third party without the prior written consent of the other. With regard to data about aspects of geology, reservoir engineering or production engineering from reports or other material submitted to public authorities, the duty of secrecy shall have the following duration calculated from the time when the data became available to the contractorContractor: - 2 years for data which are not commercially available, which are owned by the contractor Contractor and which originate from the contract area Contract Area in question, - 10 years for data, which have been commercially available, from the time when they became available to the contractorContractor, - 5 years for other data. The provisions of this Clause 18 shall not apply to disclosure to:

Confidentiality and Public Announcements. 18.1 Subject to Clauses 18.4 and 18.5, the Contractor and the National Petroleum Agency shall keep information furnished to each other in connection with Petroleum Operations and all plans, maps, drawings, designs, data, scientific, technical and financial reports and other data and information of any kind or nature relating to Petroleum Operations, including any discovery of Petroleum, as strictly confidential and shall ensure that their entire or partial contents shall under no circumstances be disclosed in any announcement to the public or to any third party without the prior written consent of the other. With regard to data about aspects of geology, reservoir engineering or production engineering from reports or other material submitted to public authorities, the duty of secrecy shall have the following duration calculated from the time when the data became available to the contractorContractor: - 2 years for data which are not commercially available, which are owned by the contractor Contractor, and which originate from the contract area Contract Area in question, - 10 years for data, which have been commercially available, from the time when they became available to the contractorContractor, - 5 years for other data. The provisions of this Clause 18 shall not apply to disclosure to: