Case Energy Partners (“Case”) is a privately held investment holding company established in 2012 by Charlie Matter, focused on the acquisition and management of oil and gas minerals and royalties. Once a family name, ‘Case’ now represents the stewardship of long-term investments—much like a generational ranch. Over the years, Case has built a portfolio of high-quality assets through trusted partnerships with industry investors, guided by a commitment to creating long-term value. Though distinct, Case's investments are managed by its affiliate, Evergreen Minerals.

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​Recognizing a unique market opportunity, in 2016, Charlie and two partners established CEP Minerals and CEP Minerals II (collectively “CEP”), a privately funded investment partnership. CEP operated as an independent platform, earning recognition as a leading acquirer, manager, and divestor of oil and gas minerals and royalties. Over its tenure, CEP completed over $120 million in transactions and received accolades such as Aggie 100 and two-time Inc. 500 top 100 honors. Having successfully divested all assets, CEP is no longer an active investment platform and has always remained legally distinct from Case.