HOUSTON, May 17, 2012 /PRNewswire/ -- Key Energy Services, Inc. (NYSE: KEG) will present at the UBS Global Oil and Gas Conference, Thursday, May 24, 2012 in Austin, Texas.

MIDLAND, Texas, May 15, 2012 /PRNewswire/ -- Basic Energy Services, Inc. (NYSE: BAS) ("Basic") today reported selected operating data for the month of April 2012.

HOUSTON, May 8, 2012 /PRNewswire/ -- Parker Drilling Company (NYSE: PKD) announced today that W.

SAN ANTONIO, May 8, 2012 /PRNewswire/ -- Pioneer Drilling Company, Inc. (NYSE Amex: PDC) today reported financial and operating results for the three months ended March 31, 2012.

NEW ORLEANS, May 7, 2012 /PRNewswire/ -- Treaty Energy Corporation (OTCQB: TECO) (www.treatyenergy.com), a growth-oriented international energy company, announced a prior funding commitment