OML 29 is a large block located in the southeastern Niger Delta. It contains 11 oil and gas fields, four of which are producing. OML 29 was part of the NNPC/Shell Joint Venture (JV). The terrain is mangrove swamp and the block is intersected by several rivers and creeks. Operations can be difficult especially during the rainy season. By far the largest field is Nembe Creek. OML 29 also contains significant associated gas volumes, and production is sent to the Nigeria LNG (NLNG) plant at Bonny Island via the Soku gas plant, which is located on OML 23. Crude is exported by the Nembe Creek Trunk Line (NCTL) which runs 97 kilometres east from Nembe Creek, to a manifold at the Cawthorne Channel field on OML 18. From here, crude is evacuated the short distance to the Bonny oil terminal. This pipeline has a capacity of 150,000 b/d at Nembe Creek, however, up to 600,000 b/d of liquids can be evacuated from the end point at Cawthorne Channel.