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Thanks to the Marcellus Shale, Houston-based Cabot Oil & Gas Corp. recently completed the best quarter in its history on an operational and financial basis. The company is adding a sixth rig in the play as it anticipates multiple infrastructure projects to come online in the months ahead, increasing the ability to get its gas to markets.

Hours ahead of EQT Corp.’s second quarter conference call on Thursday, the company tied into sales its first Utica Shale well, the CEO said.

Houston-based Carrizo Oil & Gas Inc. turned in first quarter results that included record production and revenue driven by record oil results.

Forest Oil Corp. continues to step up its activity in the Eagle Ford Shale of South Texas with the aid of a recently struck joint venture while it expands activity in the Texas Panhandle. East Texas results remain consistent and predictable, and the company is developing a new oil project in the area, said CEO Patrick R. McDonald.

Energy infrastructure giant Williams, whose pipeline partnership holds a bundle of huge natural gas and liquids operations in the Northeast, expects to see “full ethane rejection” through 2015, which will lead to “near-term headwinds” for the unit, CEO Alan Armstrong said Wednesday.

Southwestern Energy Co. is producing about 400 MMcf/d in the Marcellus Shale and doesn’t foresee any constraints in moving natural gas to markets north or south for the next couple of years, executives said Friday.

After drilling some disappointing wells targeting the Hogshooter interval of the Granite Wash in the Texas Panhandle, Linn Energy LLC is now concentrating its efforts on the Oklahoma Hogshooter, where the reservoir is seen to be of better quality with less variability, CEO Mark E. Ellis said Thursday.

Complying with the Bureau of Land Management (BLM) proposed hydraulic fracturing (fracking) rulemaking for drilling on public lands would cost as much as $180,250/well, or $370 million annually, according to economists with Oklahoma City University (OCU).

Gulfport Energy Corp. has spud some of the largest producing wells in the Utica Shale to date, and the play continues to be the Oklahoma City-based operator’s “primary focus area,” according to CEO James Palm.