Management Team

Richard M. Sherrill

Richard Sherrill is is President and CFO of Ceritas Energy, LLC. Prior to forming Ceritas in February 2003, Sherrill was with Duke Energy as Executive Vice President and Chief Operating Officer for the North American business unit, DENA. A leading energy merchant, DENA provides physical natural gas, power, and logistics to its wholesale merchant power generation fleet. As COO, Sherrill was responsible for all commercial activities including origination, trading, and business development in North America. He also served as Executive Vice President of eastern natural gas and power for DENA from May 2000 to August 2001. Sherrill began his career with Duke Energy in July 1999 as Senior Vice President of business development for DENA.

Prior to joining Duke Energy, Sherrill served in various executive positions with Dynegy Marketing and Trade from December 1992 to June 1999. His last position at Dynegy was Managing Director of power trading. Before joining Dynegy, Sherrill served as Vice President of energy lending for First Interstate Bank of Texas, now Wells Fargo.

Sherrill earned a Bachelor of Business Administration degree in finance from the University of Texas at Austin in 1988.

David Litchfield

David Litchfield is Vice President of Ceritas Energy, LLC and has over twenty-five years of experience in the oil and gas industry.

Prior to joining Ceritas in October 2003, David held several leadership positions with Duke Energy. His last position with Duke Energy was Vice President of Duke Energy Hydrocarbons, Duke Energy’s upstream investment affiliate.

Prior to joining Duke Energy, Litchfield served in numerous technical and executive positions with Mobil Oil including Technology Leader for Mobil’s U.S. Onshore Gas business. His last position with Mobil was Exploration & Production Manager for the South Texas regional business.

Litchfield earned a Bachelor of Science degree in Chemical Engineering, a Masters of Engineering degree in Petroleum Engineering, and a Masters of Business Administration degree, all from Tulane University at New Orleans.

John Herbert

John Herbert is Vice President - Legal & Regulatory of Ceritas Energy, LLC and has over twenty five years of legal experience in the energy industry.

Prior to joining Ceritas as a principal. John was a partner in the Houston office of Pillsbury Winthrop, an international law firm. From 1991 to 2003, John held executive positions in Dynegy, Inc.'s legal department.

While at Dynegy, at various times Herbert served as Senior Vice President and Deputy General Counsel, Dynegy, Inc., and Senior Vice President and General Counsel, Dynegy Marketing and Trade, Dynegy Midwest Generation, and Electric Clearinghouse. His primary areas of responsibility included: energy trading and marketing; mergers and acquisitions; energy futures and derivatives; antitrust compliance; litigation management; and day-to-day advisor to senior management.

Prior to joining Dynegy in 1991, Herbert was a partner in a New Orleans, Louisiana law firm, where his practice included representation of oil and gas producers in all aspects of the E&P business and first-chair litigation in state and federal courts.

Herbert earned a Bachelor of Science degree from Denison University and a J.D from Tulane University School of Law.

Len Hesseltine

Len Hesseltine is Vice President of Ceritas Energy, LLC and has over 25 years of professional experience in the midstream energy industry.

Prior to joining The Ceritas Group as a Principal in 2004, Hesseltine was a Vice President and Regional Manager for Dynegy Midstream Services, LP. In 2002 he was involved in the integration of Northern Natural Gas Company into Dynegy. From 1998 through the end of 2001 he was responsible for the commercial, operating and regulatory management of Dynegy's midstream assets in East and North Texas, SE Louisiana, Oklahoma and Kansas.

Prior to 1998 Hesseltine held various management positions with Dynegy's Midstream group and its predecessor, NGC Corporation, involving Gas Supply and Business Development activities including activities related to numerous acquisitions and divestitures tied to the gathering and processing industry. In total Hesseltine served for thirteen years with Dynegy and NGC.

Before his tenure with Dynegy, Hesseltine held a number of key positions in engineering, operations and business development with several energy companies including Enron Corp and Gulf Oil.

Hesseltine earned a Bachelor of Science degree in Chemical and Petroleum Refining Engineering from Colorado School of Mines.

Doug Graham

Doug Graham has over twenty five years of energy industry experience with a diverse background focused on management, business development, marketing, and finance. He joined the Ceritas Group in mid 2009 to lead the Business Development effort in the Marcellus.

Previously, as General Manager, Business Development for Anadarko Midstream, he was one of three direct reports to the Vice President of Midstream and led a group of 32 professionals with responsibilities for managing the affiliate, 3rd party, and partner relationships covering in excess of $400mm or EBITDA and with an associated $500mm annual capital budget. Doug joined Anadarko in late 2006, subsequent to the simultaneous acquisitions of Western Gas Resources and Kerr McKee, to integrate the midstream assets of all three legacy companies with the objective of building the management structure for the midstream segment and preparing for the formation of an MLP to re-capitalize the approximately $4 billion in midstream assets held by the company. Anadarko successfully launched the IPO of Western Gas, their MLP, in May 2008.

Prior to re-joining Anadarko, Doug developed a small management group with the backing of Willbros Group to build and execute a midstream strategy where the company could leverage their engineering and construction expertise into the midstream segment and participate in related investment opportunities. The Group originated about $50mm in projects that were structured and successfully completed.

Doug first joined Anadarko in 1993 where he led their first acquisition of midstream assets in the Kansas Hugoton field from Panhandle Field Services. He ultimately progressed from this small group focused on midstream to direct the combined marketing and midstream group with responsibilities for 18 commercial professionals.

Doug has been involved in the energy business working primarily from a producer perspective. He previously held positions in Maxus Energy from 1987 thru 1993 in marketing, midstream, and international business development, and was also director of investor relations while the company prepared for and effectively completed a significant new equity issuance.

Doug holds a Bachelor of Science in Accounting from Penn State. Currently residing in The Woodlands, Texas.