Natural gas production increased to 1,775 million cubic meters from 1,517 million cubic meters in 2005 and was produced by Pluspetrol S.A. (59%), Aguaytia S.A. (22%), Petrotech del Perú S.A. (8%), Petróleo Brasileiro S.A. (Petrobrás) (6%), and others (5%). Petrobrás through Petrobrás Energía S.A. acquired exploration and production rights for natural gas and petroleum in Lots 57 and X, respectively. The Camisea Project encompasses three segments—Upstream, Transportation, and Distribution of natural gas from the Camisea field, which is located in the Ucayali Basin in the Department of Cusco. Under the license contract, the Upstream Consortium holds the rights to produce natural gas and liquids in block 88 for 40 years. Investments to develop and produce, transport, and distribute natural gas from the Camisea field were estimated as follows: the Upstream Project to develop and produce natural gas, $550 million; the Transportation Project to transport natural gas and liquids to Lima through pipelines, $820 million; and the Distribution Project for the distribution network in Lima, $170 million. In 2006, crude oil production increased to from in 2005, an increase of almost 3%. Production of petroleum derivatives decreased to from in 2005, a decrease of more than 6%. Peru imported an average of crude oil and petroleum products to satisfy its internal consumption of . Peru's total crude oil production of in 2006 came from Pluspetrol S.A. (59.6%), Petrobrás (16.7%), Petrotech (14.2%), and others (9.5%) (table 1; Ministerio de Energía y Minas, 2007b). Almost 60% of the country's crude oil production came from the jungle blocks in the Loreto and the Ucayali Regions; the remainder was produced at the coastal and offshore fields in Talara. The country's proven petroleum reserves were estimated to be about . In 2006, the largest oil refinery continued to be Petroperú's La Pampilla, which had a designed capacity of about . The second largest oil refinery was Petroperú's Talara, which had a designed capacity of about . Other refineries had the following designed capacities: Conchan, ; Iquitos, ; Pucallpa, ; and El Milagro, . Refinery production came from La Pampilla (47%), Talara (38%), Conchán (7%), Iquitos (5%), Pucallpa (2%), and Milagro (1%).