replacing it with "a minimum period specified in the contract." In June 2005 approving the Law 28 552, which amends Law 27133, disappears the phrase "permanent horizon of 20 years" and instead supply guarantees are mentioned in general terms. This made possible to allocate 100% of the Block 56 reserves for export. Since the Block 56 was not sufficient for export commitment again make the policy changes necessary to also dispose of Lot 88, for the domestic market. In December 2005 promulgating the 2005 EM 050 DS. In the preamble to the DS was explicitly stated that having the Act amended 28552 Article 4 of Law 27133 in relation to supplying the domestic market, authorizing Perupetro to renegotiate the contract for Block 88 to allow its proven reserves are exported. The development plan was carried out under the government of President Alejandro Toledo and the gas fields became operational in August 2004. Gas fields The gas fields are located in Ucayali Basin. According to data verified by the international energy consulting firm Gaffney, Cline & Associates, the Camisea gas fields contain about of natural gas and of natural gas liquids. Pipelines Two pipelines carry natural gas from the Camisea gas fields. The Camisea pipeline traverses through the steep Andes mountains, and terminates within the Paracas National Reservation (Ica Region) at the Pisco terminal. It passes through the Malvinas plant, where liquefied petroleum gas (propane and heavier liquids) is separated from natural gas. The pipeline has capacity of . The second natural gas pipeline runs from Malvinas along the coast to Lima and Callao for distribution to residents and industries in the capital city. LPG is exported through the Pisco terminal. This pipeline system is operated by Transportadora de Gas Peruano, a consortium of Tecgas, Pluspetrol, Hunt Oil Company, SK Corporation, Sonatrach and Grana y Montero. In April 2007, Suez Energy and Kuntur Gas Transport unveiled rival proposals for pipelines to carry Camisea gas to southern Peru. Controversy Law 27133 was amended by Supreme Decree 050-2005, 006-2006 and 031-2004, both given by the Ministry of Energy and Mines. Those rules were signed by Alejandro Toledo, Pedro Pablo Kuczynski and Jaime Quijandria. This conduct would be unconstitutional because the President would have issued a Supreme Decree (No. 050-2005 and 006-2006) in open distortion of the law (Law 27,133), thus violating Article 118 (paragraph 8) of the Constitution, rule setting corresponding to the