In a filing with the Federal Energy Regulatory Commission, Texas Eastern Transmission LP (Tetco) is seeking approval to abandon the last of its Cameron System onshore in Louisiana and offshore in state and federal waters in the Gulf of Mexico (GOM). Tetco has abandoned other parts of the Cameron System over the last few decades. Due to declining natural gas production in the offshore areas served by the system, only de minimis quantities of casinghead gas now flow on remaining portions of the system, Tetco said in the filing. The facilities covered by the filing are between the Grand Chenier compressor station in Cameron Parish, LA, and the end of the system in the shallow waters of the GOM in the West Cameron, East Cameron and Vermilion offshore areas.