ONEOK, Inc. was named to the New York Stock Exchange Century Index, a new index that recognizes 100-year-old publicly traded companies that have demonstrated consistent historical growth and shareholder value.

Inergy Midstream, L.P. acquired 100% of the membership interests in US Salt LLC (US Salt) from Inergy L.P. (NRGY) for total consideration of $192.5 million.

Valero Energy received an offer of $350 million for its idled Aruba refinery, and PetroChina is being described as an interested party, according to a recent Dow Jones report.

AltaGas Ltd. reached a settlement agreement with the staff of the Michigan Public Service Commission (MPSC) with respect to its acquisition of SEMCO Holding Corp.

Kinder Morgan, Inc. and El Paso Corp. received all regulatory approvals required to close their merger.

Crosstex Energy LP signed a definitive agreement to acquire Clearfield Energy Inc., a crude oil, condensate and water services company operating in the Utica shale, for $210 million.

Summit Midstream Partners LLC announced that its wholly-owned subsidiary, Summit Midstream Holdings, LLC, has closed on a $265 million increase to, and amendment and restatement of, its revolving credit facility.

Reliance Industries Limited signed a $2 billion equivalent loan with nine banks covered by Euler Hermes Deutschland AG for a petrochemical plant expansions at Jamnagar, Hazira, Silvassa and Dahej in India.

Rex Energy Corp. announced that it, together with its partners in Keystone Midstream Services, LLC, entered into an agreement and plan of merger with a subsidiary of MarkWest Energy Partners L.P.

Delta Air Lines’ wholly owned subsidiary, Monroe Energy LLC, has reached agreement with Phillips 66 to acquire the Trainer refinery complex south of Philadelphia.

Williams Partners L.P. completed its previously announced acquisition of Caiman Energy's wholly owned subsidiary, Caiman Eastern Midstream, LLC.

Energy Transfer Partners, LP and Sunoco Inc. entered into a definitive merger agreement whereby ETP will acquire Sunoco.

M&A in the energy sector had a record year in 2011 and activity in 2012 already appears to be keeping up the same pace, according to a report issued today by S&P Capital IQ.

Kinder Morgan Energy Partners, L.P. signed a definitive agreement to acquire KKR's 50% interest in a joint venture holding gathering and processing assets in the Uinta basin and Eagle Ford shale.

Encana Corp. delivered strong financial results and operational performance in the first quarter of 2012 despite further downward pressure on natural gas prices.