Feb. 2012 - Santos has commenced gas production at the Wortel field offshore Indonesia. The project includes two gas wells, a minimum facility wellhead platform and a 6-mile (10-kilometer) gas pipeline to the existing Oyong wellhead platform. Wortel’s gas production will then flow through the existing 37-mile (60-kilometer) pipeline to the onshore gas processing facility at Grati for processing and onward sale. Gross production rates from the combined Oyong and Wortel fields are expected to be about 90 MMcm/d.

Jan. 2012 - Santos is continuing to develop the Wortel development offshore Indonesia. The project includes two gas wells, a minimum facility wellhead platform and a 6-mile (10-kilometer) gas pipeline to the existing Oyong wellhead platform. Wortel gas production will then flow through the existing 37-mile (60-kilometer) pipeline to the onshore gas processing facility at Grati for processing and onward sale. The Wortel wellhead platform jacket and topsides have been successfully installed. Drilling of the two Wortel wells is complete and the pipeline from Wortel to Oyong is complete and ready to receive gas. Pre-commissioning activities have commenced and first gas is expected by the end of January 2012.

Nov. 2010 - Santos made a final investment decision approving the development of the Wortel gas project in the Sampang PSC, East Java, Indonesia. Wortel's development includes two gas wells, a minimum facility wellhead platform and a 6-mile-long (10-kilometer-long) gas pipeline to the existing Oyong wellhead platform. Gas production will then flow through an existing 37-mile-long (60-kilometer-long) pipeline to the onshore gas processing facility at Grati for processing and onward sale. Development costs of the gas project are estimated at US $100 million, and first gas is expected towards the end of 2011. Gross production rates from the combined Oyong and Wortel fields are expected to be about 90 MMcm/d. Santos serves as the operator of the project, holding a 45% interest. Partners in the project include Singapore Petroleum Company (40%), and Cue Energy Resources (15%).

Dec. 2009 - Indonesia's government has approved plans to develop the Wortel gas field offshore East Java, Indonesia. It is estimated the field holds recoverable reserves in the amount of 150 Bcf of gas, which Santos plans to exploit in 2011. Santos already produces oil and gas from the Oyong field, which is also located in the Sampang block. The Oyong field currently produces about 3,500 bopd, and about 50 MMcf/d, supplying a power plant in East Java for state electricity firm PLN.

Oct. 2009 - Australia's Cue Energy Resources began producing its first gas from the Oyong oil and gas field offshore east Java in Indonesia. The gas is being transported through a 37 mile (60 kilometer) pipeline from the offshore production facility to the onshore processing plant at Grati. It is then metered and supplied to PT Indonesia Power for electricity generation under an existing gas supply contract for the whole of the gas from the field.

Apr. 2009 - Oyong, located in the Sampang Production Sharing Contract, offshore East Java, was developed in two phases, with the second phase planning to commence production in Q309. In Phase 2 of development, gas will be exported via a 34-mile (55-kilometer) pipeline to an onshore gas processing facility. The field is expected to produce roughly 57 MMcf/d (1.6 MMcm/d).