Who is responsible?

Gareth is an entrepreneur and the founder and long-time leader of a large public oil and gas company. Born in the UK, he studied geology at Oxford University before working for Texaco and Murphy Oil in the US and UK. In the 1980s he became independent and founded Denbury Resources, which grew into a $10 billion company under his leadership. He stepped down from Denbury and has since been involved in creating businesses in carbon sequestration and helium exploration.

Gareth has been involved with businesses in Canada since 1980, when his first company was funded on the Vancouver Stock Exchange; he led a successful US exploration effort for Calgary-based Coho Resources, and Denbury itself became a Toronto Stock Exchange-listed Canadian company in 1992 through a reverse merger with Canadian Newscope. Between 1990 and 1996 Denbury grew from a cash flow of $0.12 to $2.51 per share by drilling wells and acquiring oil fields in the US, raising money in Canada at successively higher levels, before listing on the New York Stock Exchange and growing through a series of accretive acquisitions.

After the 2008 financial crisis he left Denbury and, through 2CO Ltd, engineered a complete carbon-capture project at a UK coal plant with North Sea storage; the UK government elected not to fund the project through completion in the economic conditions of the time. That experience in CO₂ capture and storage, and in oxy-fuel combustion, led to the formation of Valverde, which aims to become a significant deployer of oxy-fuel technology into clean electrical power generation.

Away from the workplace, Gareth helped fund a new Earth Science building at Oxford University and was elected to the Chancellor’s Court of Benefactors. He is a trustee of the Horsfall Trust in Bradford, which built a new sports facility for the city’s youth, and is chairman and owner of Bradford (Park Avenue) AFC.

David began his career at Mobil Oil’s accounting centre in Dallas, worked as a corporate auditor at Mobil’s Joliet refinery, and completed a twenty-year career with ExxonMobil as an accounting team leader. He then spent nineteen years with Denbury Resources. His experience spans audit, revenue and tax accounting and SAP accounting-system implementations. He is a graduate of Columbia Business School’s CFO Executive programme — covering business models, communicating with boards and analysts, scenario planning, ESG and governance — and holds a BBA in Accounting from UT-RGV. He has served as Secretary of the Ford Performance Club of North Texas and as Vice President of the Frisco Velodrome, and in various capacities with charitable organizations.

David most recently served as Managing Director and Head of the Upstream E&P Group at Capstone Partners, a middle-market investment-banking advisory firm with offices in Boston and Denver, leading equity and debt capital formation and strategic advisory engagements, including mandates related to CO₂-flood asset acquisitions. Before joining Capstone in 2015 he co-founded Sierra Partners LLC, advising domestic and international energy clients from 2008 to 2015 on mergers and acquisitions, acquisition and divestiture initiatives and private-equity capital raises, and serving as investor-relations consultant to Kodiak Oil & Gas Corp (NYSE: KOG). Earlier he spent nine years with a Denver-based oil and gas investor-relations consultancy focused on institutional investors and sell-side analysts, working closely with Gareth Roberts during his tenure as CEO of Denbury Resources.

Randy developed and executed marketing strategies for large-cap public companies including Sun E&P, Oryx Energy and Kerr-McGee, and for private operators such as Merit Energy. He has a strong track record of negotiating and structuring complex agreements across gas gathering, compression, dehydration, treating and transportation, as well as gas processing, NGL fractionation, storage, and sales and exchange agreements, and is highly skilled in evaluating gas-field development options and managing nomination and control processes. He collaborates extensively with engineering and legal teams to align technical requirements with contractual obligations, and was a key contributor to the PREMAS (SAP/PRA) integrated marketing, allocation and accounting system at Oryx. At Denbury he led financial and accounting teams supporting CO₂ asset operations, overseeing cost structures and developing usage-rate models for compression, dehydration, transportation and recycling facilities, and advised IT teams on SAP/PRA functionality.

Dave brings deep expertise in origination, power marketing and structured energy transactions within utilities, independent oil and gas, and energy-trading organizations, with a strong command of US and Canadian power markets. His technical fluency in thermal generation — specifically oxy-fuel technologies — lets him translate operational characteristics into effective commercial contract terms, structuring agreements around availability guarantees, ramp rates and heat rates. He has led innovation and market expansion for Mobil Oil, Valero Energy, TXU and Tri-State G&T, where he managed complex energy portfolios, negotiated major power and gas agreements and integrated renewable-energy and REC trading strategies into market operations.