23. Interests in Joint Ventures (a) Santos Ltd and its controlled entities have combined interests in unin corporated joint ventures in the following major areas: Joint venture/area Principal activities Average interest % Amadeus Basin Mereenie Oil an gas production 65 Mereenie Pipeline Oil tran sportati on 65 Palm Valley Gas producti on 48 Browse Basin Oil and gas e xploration 74 Carnarvon Basin Oil and gas e xploration and production 32 Cooper Basin Downstream Liquid hydr ocarbon transportation and processing 65 Cooper Basin Unit South Australia Oil an gas production 65 Queensland Oil an gas production 60 Cooper/Eromanga Basins South Australia Oil and gas e xploration and production 65 Queensland, ATP 259P Oil and gas e xploration and production 60 Other Eromanga Oil and gas e xploration and production 74 Jackson Moonie Pipeline Oil tran sportati on 83 Eastern Queensland Bowen Basin Gas explorati on and production 50 Surat Basin Oil and gas e xploration and production 48 Egypt Gulf of Suez Oil and gas e xploration 50 Gippsland Basin Oil and gas e xploration and production 35 Indonesia East Java Basin Oil and gas e xploration and production 42 Kutei Basin Oil and gas e xploration 35 West Natuna Basin Oil and gas e xploration and production 6 West Papua Oil and gas e xploration 20 Offshore Northern Australia Bonaparte Basin Oil and gas e xploration 95 Houtman Basin Oil and gas e xploration 42 Timor Gap Oil and gas e xploration and production 17 Timor Sea Oil and gas e xploration and production 22 Otway Basin Oil and gas e xploration and production 36 Papua New Guinea PDL1 (Part Hides Field) Oil and gas e xploration 31 Other interests Oil and gas e xploration and production 31 Sorell Basin Oil and gas e xploration 58 USA Gulf Coast Oil and gas e xploration and production 39 Rocky Mountains Oil and gas e xploration and production 50 (b) The sales revenue received from the Santos Group’s share of petroleum pr oducts produced by the joint ventures is $1,493.5 million (2003: $1,451.2 million) and the contribution of joint venture business undertakings to profit from ordinary activities before interest and tax of the Santos Group is $581.3 million (2003: $496.7 million). NOTES TO THE FINANCIAL STA TEMENTS for the year ended 31 December 2004 72 Annual Report 2004