The Interstate Oil and Gas Compact Commission, a multi-state organization created by Congress in 1935 to protect the nation's oil and gas interests, acts more as an industry lobbying group with governmental imprimatur
Since the 1980s, IOGCC has been active in securing and maintaining a loophole in an environmental protection bill – the Resource Conservation and Recovery Act – whereby oil and gas waste products have been exempted from EPA regulations for hazardous wastes.
Check out the DeSmog investigation on this issue for more.