Willis, Graves & Associates, Inc.
Serving the Oil, Natural Gas and Utility Industries for 32 years

8140 North Mopac Expressway, Building 2, Suite 250, Austin, Texas 78759

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Jonathan E. Ellis, President Résumé

has experience as a consultant in the natural gas industry.  Trained as an economist at The University of Texas at Austin, Mr. Ellis has been recognized as a expert in the areas of oil and gas pricing, contracts and markets by State and Federal Courts in many jurisdictions.  Mr. Ellis earned his B.A. and M.P.A. from The University of Texas at Austin.

Thomas A. Graves, Vice-President Résumé

co-founded the firm in 1977.  Mr. Graves has of experience and formerly worked as a rate analyst for Tennessee Gas Pipeline Company and as a project analyst for Browning-Ferris Industries, Inc.  Mr. Graves holds a B.B.A. from The University of Texas at Austin.  Mr. Graves has been recognized as an expert on rate issues for natural gas and water/wastewater utilities before State and Federal judicial and administrative jurisdictions.

John M. Berghammer, Vice-President Résumé

has been an industry consultant specializing in oil and gas marketing and revenue accounting issues since 1983.  Mr. Berghammer has designed a variety of gas accounting management systems and has conducted numerous audits of wellhead and gas plant sales.  Mr. Berghammer has testified as an expert in many matters and venues related to the production, sale and accounting of natural gas and oil.  Mr. Berghammer earned his B.A. with honors from St. Mary's University and his M.P.A. from The University of Texas at Austin.

Christopher Kay Alguire Résumé

has more of experience as a consultant in the oil and gas industry.  Ms. Alguire performs revenue and gas plant audits for various interest owners and in the resolution of contractual, marketing and transportation issues.  Ms. Alguire has testified as an expert on revenue accounting and gas processing issues.  Ms. Alguire holds a B.A. in Economics from The University of Texas at Austin.

Belsa Riojas-Powe

A research associate with the firm, Ms. Powe holds a B.B.A. from The University of Texas - Pan American.  Ms. Powe has of experience specializing in document research and information management for clients in both the oil and gas as well as water utility practices of the firm.