May 10, 2011 01:19PM Barclays on U.S. Oil & Gas: E&P (Mid-Cap): 1Q11 Review
May 10, 2011 09:04AM Global Hunter Securities Upgrades Quicksilver Resources (KWK) to Buy; Going with the Flow, KWK Adds Oil Acreage
Apr 6, 2011 12:47PM Barclays on U.S. Oil & Gas: E&P (Mid-Cap): Upgrades DNR, Downgrades KWK