NEW YORK ( TheStreet) -- El Paso ( EP), Atlas Energy ( ATLS), Brigham Exploration Co. ( BEXP) and Whiting Petroleum ( WLL) showed strength this past week, whereas Suntech Power Holdings ( STP), LDK Solar ( LDK), Newfield Exploration ( NFX) and Quicksilver Resources ( KWK) lost considerable value.El Paso led the pack of winners this past week, jumping 27.6%. Kinder Morgan recently announced it would acquire all the outstanding shares of El Paso in a transaction that will create the largest midstream in North America, with an enterprise value of around $94 billion and 80,000 miles of pipelines. The total purchase price is approximately $38 billion. Atlas Energy climbed 25.8%. Brigham Exploration improved 20.4%. Norwegian Oil & Gas major Statoil ( STO) has acquired Brigham for approximately $4.4 billion. Statoil will pay $36.5 per share in an all-cash tender offer. Other movers were Whiting Petroleum (+15.4%), JA Solar Holdings ( JASO) (+14.4%) and Oasis Petroleum ( OAS) (+13.8%). Anadarko Petroleum ( APC) moved up 12%. The stock was rated new overweight at Morgan Stanley with a target price of $100 a share. Denbury Resources ( DNR) edged up 11.3%. SM Energy ( SM) added 10.5%. Equity analyst John Nelson at Macquarie Research has raised the stock to outperform from neutral with a 12-month target price of $87.00 a share. EXCO Resources ( XCO) and The Williams Cos. ( WMB) gained 10.4% each. Noble ( NE) piled on 10.4%. The stock was raised to buy at Pareto Securities. Niska Gas Storage Partners ( NKA) rose 10.2%. Berry Petroleum ( BRY) surged 9.6%. The stock was rated a new buy at Sterne, Agee & Leach, with a 12-month target price of $60.00 a share. Pioneer Natural Resources ( PXD) and EOG Resources ( EOG) moved up 8.7% and 7.9%, respectively. Goldman recommends a buy on both the stocks, ahead of their third-quarter results. Among the laggards, Suntech Power Holdings was the top decliner, plunging 13.8%. LDK Solar shed 12.5%. Newfield Exploration pared 11.9%. The company was cut to neutral from overweight at Simmons & Co. QuickSilver Resources relinquished 10.6%. Halliburton ( HAL) dropped 10.5%. The stock was cut to neutral from buy at Guggenheim Securities with a target price of $45 a share, vs. the earlier $55. RPC ( RES) erased 10.2%. Frontline ( FRO) dived 9.4%. Jonathan Chappell, equity analyst at Evercore Partners, has downgraded the stock to underweight from equal-weight. The 12-month target price is $4 a share.