Common use of Reserve Engineers Clause in Contracts

Reserve Engineers. Netherland, Sxxxxx & Associates, Inc. and Schlumberger Technology Corporation (together, the “Reserve Engineers”), whose reserve reports (the “Reserve Reports”) are referenced or appear, as the case may be, in the Pricing Disclosure Package or are to be referenced or appear, as the case may be, in the Prospectus were, as of December 31, 2011, and are, as of the date hereof, independent engineers with respect to the BreitBurn Entities; and the historical information underlying the estimates of the reserves of the BreitBurn Entities supplied to the Reserve Engineers for purposes of preparing the Reserve Reports, including, without limitation, production volumes, sale prices for production, contractual pricing provisions under oil or gas sales or marketing contracts, costs of operations and development and working interest and net revenue information relating to ownership interests in properties, was true and correct in all material respects in accordance with customary industry practice on the date that each such Reserve Report was prepared.

Reserve Engineers. Netherland, Sxxxxx & Associates, Inc. and Schlumberger Technology Corporation (together, the “Reserve Engineers”), whose reserve reports (the “Reserve Reports”) are referenced or appear, as the case may be, in the Pricing Disclosure Package or are to be referenced or appear, as the case may be, in the Prospectus were, as of December 31, 20112012, and are, as of the date hereof, independent engineers with respect to the BreitBurn Entities; and the historical information underlying the estimates of the reserves of the BreitBurn Entities supplied to the Reserve Engineers for purposes of preparing the Reserve Reports, including, without limitation, production volumes, sale prices for production, contractual pricing provisions under oil or gas sales or marketing contracts, costs of operations and development and working interest and net revenue information relating to ownership interests in properties, was true and correct in all material respects in accordance with customary industry practice on the date that each such Reserve Report was prepared.

Reserve Engineers. Netherland, Sxxxxx Xxxxxx & Associates, Inc. and Schlumberger Technology Corporation (together, the “Reserve Engineers”), whose reserve reports (the “Reserve Reports”) are referenced or appear, as the case may be, in the Pricing Disclosure Package or are to be referenced or to appear, as the case may be, in the Prospectus Offering Memorandum were, as of December 31, 2011, and are, as of the date hereof, independent engineers with respect to the BreitBurn Entities; and the historical information underlying the estimates of the reserves of the BreitBurn Entities supplied to the Reserve Engineers for purposes of preparing the Reserve Reports, including, without limitation, production volumes, sale prices for production, contractual pricing provisions under oil or gas sales or marketing contracts, costs of operations and development and working interest and net revenue information relating to ownership interests in properties, was true and correct in all material respects in accordance with customary industry practice on the date that each such Reserve Report was prepared.