Midstream natural gas services provider Regency Energy Partners LP has amended and extended its $900 million revolving credit facility through June 15, 2014.

A unit of Williams Partners LP is initiating a binding open season from March 4 to March 26, 2010, for an expansion of its Transco pipeline to provide incremental firm natural gas transportation capacity to transport Pennsylvania Marcellus supply to New York and New Jersey markets.

Houston-based natural gas and energy products provider El Paso Corp. has entered into an agreement to sell its interest in Mexican pipeline and compression assets to a unit of Sempra Energy for $300 million.

Quintana Capital Group, a Houston-based, energy-focused private-equity firm, acquired all membership interests of Genesis Energy LP’s general partner from Denbury Resources Inc. for roughly $85 million in cash.

Tulsa, Okla.-based Frontier Gas Services LLC has acquired two gas gathering systems located in the Fayetteville Shale in Faulkner and Conway Counties, Arkansas.

DCP Midstream Partners LP has acquired an interstate natural gas liquids pipeline system from Buckeye Partners LP for $22 million in cash.

Gateway Energy Corp. has acquired the Hickory Creek Gathering System from Hickory Creek Gathering LP and Range Texas Production LLC for a cash purchase price of $3.9 million.

MoBay Storage Hub LLC, has launched an open season for up to 8.0 Bcf of firm natural gas storage service. Bids are due by 5 p.m. CST on February 2, 2010.

Chesapeake Midstream Partners LLC, the recently formed entity which purchased and operates Chesapeake Energy's Barnett, Permian, and Mid-Continent natural gas gathering and treating assets, has hired David C. Shiels as CFO.