0000950116-06-001372 Sample Contracts

AMENDED AND RESTATED CERTIFICATE AND AGREEMENT OF LIMITED PARTNERSHIP FOR ATLAS AMERICA SERIES 26-2005 L.P.
Limited Partnership Agreement • April 28th, 2006 • Atlas America Public #15-2005 Program • Crude petroleum & natural gas • Delaware
RECITALS
Gas Purchase Agreement • April 28th, 2006 • Atlas America Public #15-2005 Program • Crude petroleum & natural gas
EXHIBIT 10.1 ------------ DRILLING AND OPERATING AGREEMENT
Drilling and Operating Agreement • April 28th, 2006 • Atlas America Public #15-2005 Program • Crude petroleum & natural gas • Pennsylvania
EXHIBIT 10.13 ------------- DRILLING AND OPERATING AGREEMENT DATED SEPTEMBER 15, 2004 BY AND BETWEEN ATLAS AMERICA, INC.
Drilling and Operating Agreement • April 28th, 2006 • Atlas America Public #15-2005 Program • Crude petroleum & natural gas • Tennessee
Exhibit 10.10 ------------- CONFIRMATION OF GAS PURCHASE AND SALES AGREEMENT DATED NOVEMBER 17, 2004 BETWEEN ATLAS RESOURCES, INC. ET. AL. AND FIRST ENERGY SOLUTIONS CORP. FOR THE PERIOD FROM APRIL 1, 2006 THROUGH MARCH 31, 2007 PRODUCTION/CALENDAR...
Gas Purchase and Sales Agreement • April 28th, 2006 • Atlas America Public #15-2005 Program • Crude petroleum & natural gas

CONFIRMATION OF GAS PURCHASE AND SALES AGREEMENT DATED NOVEMBER 17, 2004 BETWEEN ATLAS RESOURCES, INC. ET. AL. AND FIRST ENERGY SOLUTIONS CORP. FOR THE PERIOD FROM APRIL 1, 2006 THROUGH MARCH 31, 2007 PRODUCTION/CALENDAR PERIODS

Exhibit 10.9 ------------ GUARANTY AS OF DECEMBER 7, 2004 BETWEEN FIRSTENERGY CORP. AND ATLAS RESOURCES, INC.
Guaranty • April 28th, 2006 • Atlas America Public #15-2005 Program • Crude petroleum & natural gas • Ohio

Guaranty dated as of December 7, 2004 by and between FirstEnergy Corp., an Ohio corporation, with its principal place of business at 76 South Main Street, Akron, OH 44308 ("Guarantor") and Atlas Resources Inc., a Pennsylvania corporation, with its principal place of business at 311 Rousar Rd., Coranpolls, PA 15108 ("Seller"). Seller, together with its affiliates Atlas Energy Group, Inc., an Ohio Corporation, Resource Energy, Inc., a Delaware corporation, and Viking Resources Corporation, an Ohio Corporation, entered into a Gas Purchase Agreement for the purchase and sale of natural gas ("Sales Agreement") to FirstEnergy Solutions Corp., ("Customer"), a subsidiary of the Guarantor.