Jeff Derner, CFA, is the Chief Financial Officer at Oso Midstream since 2025. Prior to this role, Jeff served as Chief Financial Officer at Rimrock Energy Partners from 2015 to 2025, where they developed financial goals and analyzed investments in midstream projects. Jeff also held positions as a Partner at Millbrook Equity Partners from 2012 to 2015 and as a Senior Consultant at Fiserv from 2010 to 2012, focusing on financial services and risk management. They began their career as an Analyst at Valentine Capital from 2007 to 2010 after earning a Bachelor of Business Administration in Finance from Texas A&M University in 2006.
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