On April 24, 2013, a bipartisan group of senators and representatives reintroduced a revised version of the Master Limited Partnership Parity Act (the MLP Parity Act) to the Senate and House. Currently, a company can qualify as a master limited partnership (MLP) only if at least 90 percent of its gross income consists of “qualifying income,” including income form the production and sale of oil and natural gas, coal extraction, and pipeline projects.