Energy Transfer Partners, L.P. (ETP) is engaged in natural gas operations. The Company is also operates in the retail propane segment. The Company is managed by its general partners, Energy Transfer Partners GP, L.P. (its General Partner), which is in turn managed by its general partner, Energy Transfer Partners, L.L.C. (ETP LLC). Energy Transfer Equity, L.P. (ETE) owns ETP LLC, the general partner of its General Partner. In September 2008, the Company entered into an agreement with OGE Energy Corp. (OGE) to form a joint venture entity, ETP Enogex Partners LLC (ETP Enogex Partners). On January 27, 2009, the Company announced that it had entered into an agreement with Chesapeake Energy Marketing, Inc., a wholly owned subsidiary of Chesapeake Energy Corporation (Chesapeake) to construct a 178-mile 42-inch interstate natural gas pipeline (Tiger pipeline).