People | Top Story | Private Equity | People-Resignation | Capital Markets | Private Equity Activity
STACK E&P CEO Resigns
Alta Mesa Resources announced the resignations of Harlan H. Chappelle, President and Chief Executive Officer, and Michael E. Ellis, Vice President and Chief Operating Officer - Upstream, effective December 26, 2018.
Mr. Chappelle and Mr. Ellis will also resign as members of the Company's board of directors, effective immediately.
James Hackett, Executive Chairman of the Board, has been named Interim Chief Executive Officer of the Company.
Agreement with PE Firm Meridian
The Company also announced that it has entered into an agreement with Meridian Energy LLC, which is led by Randy L. Limbacher, John H. Campbell and Mark P. Castiglione. Meridian is a private equity portfolio advisory company. Mr. Limbacher will serve as the President, Mr. Campbell will serve as the Chief Operating Officer Upstream and Mr. Castiglione will serve as the Chief of Staff to the President, on a consulting basis. The new leadership team will share details of the 2019 operating and financial plan early next year.
About Limbacher, Campbell & Castiglione
Mr. Limbacher, Mr. Campbell and Mr. Castiglione have worked with Riverstone Holdings LLC since June 2017. Mr. Limbacher's prior experience includes serving in Chairman, CEO, COO and EVP roles in various E&P companies such as Samson Resources, Rosetta Resources, ConocoPhillips and Burlington Resources. Mr. Campbell's prior experience includes serving as President and other senior executive positions at Quantum Resources, LLC and Ocean Energy. Mr. Castiglione's prior experience includes senior executive positions at Quantum Resources, LLC and El Paso Corp.
More People-Resignation News

Magnolia Oil & Gas CEO Chazen Steps Down; Cites Health Reasons
Magnolia Oil & Gas Corp. announced that Christopher Stavros, the Company's current Executive Vice President and Chief Financial Officer, has been named President and Chief Executive Officer, and…

Civitas Resources Shuffles Management Team
Civitas Resources, Inc. announced that Brad Johnson and Brian Kuck are joining the Company's leadership team and that Dean Tinsley, Senior Vice President, Operations, will be stepping down.…

Evolution Petroleum President & CEO Departs Company
Evolution Petroleum reported that its President and Chief Executive Officer, Jason Brown, is departing the Company in order to pursue other opportunities. The Board of Directors has elected…

W&T Offshore VP/General Counsel Departs Company
W&T Offshore, Inc. announced that Shahid A. Ghauri, W&T's Vice President, General Counsel and Corporate Secretary is leaving the Company to pursue other personal interests. Nadege Assale, who…

Tallgrass Shuffles Executive Management Team; New Chairman, CEO
Tallgrass Energy LP has appointed William R. (Bill) Moler to Non-Executive Chairman of the Board effective July 1, 2022. At that time, Moler will step down as CEO…
Mid-Continent News

Q1 A&D Transactions Jump to $30B , While Deal Flow Was Down 40%
The first quarter of 2026 has officially defined the "Barbell Era" of American oil and gas. While the total number of deals plummeted by 46% YoY (dropping to…

A Quiet Capital Pattern Is Forming in North American Upstream — and Almost No One Is Talking About It
A handful of recent transactions and capital raises point to a subtle pattern in North American upstream—one that is easy to miss because each event, on its own,…

Dallas Fed Energy Survey: What Oil and Gas Executives Are Really Saying
The latest Dallas Fed Energy Survey shows a U.S. oil and gas industry that is not collapsing—but is clearly constrained. Executives are operating in a defensive posture, focused…

Amplify to Sell Oklahoma Assets for $92.5MM
Nov. 05, 2025 Amplify Energy announced it has entered into a definitive agreement to sell all of its interests in Oklahoma for a total contract price of $92.5…

BKV Closes $370MM Bedrock Barnett Acquisition
BKV Corporation (NYSE: BKV) closed its ~$370 million acquisition of Bedrock Production, LLC, acquiring Bedrock Energy Partners’ Barnett Shale assets in a deal that materially expands BKV’s scale…
Mid-Continent - Anadarko Basin News

New E&P Scores Capital; Heading To the MidCon Region
Company Overview 406 Energy, LLC is a newly formed, Houston-based upstream oil & gas development company launched in October 2025 with an initial equity commitment from NGP Natural…

Why Surface-Only Inventory Predictions Are a Fool’s Errand
Introduction The promise is seductive: a map covered in potential drill spots, colored by predicted “rock quality,” with hundreds or thousands of “remaining locations.” Many oil & gas…

From Hedge Funds to Supermajors: Everyone Wants Hub-Linked Gas
TotalEnergies has signed a deal to acquire a 49% non-operated interest in Continental Resources’ Anadarko Basin natural-gas assets in Oklahoma—low-cost, long-plateau rock tied into existing midstream and well…

Diversified Energy to Acquire Canvas Energy for $550MM
Diversified Energy is expanding its Oklahoma footprint with a sizeable bolt-on acquisition that management says will meaningfully increase cash flow and deepen operating density in the state. On…

Comstock to Acquire Assets from Ovation Energy For $62.5 Million
Comstock Resources agreed to acquire substantially all of the assets of Ovation Energy, L.P. for $62.5 million, expanding its producing footprint across multiple U.S. natural gas basins. The…