For Immediate Release



Jacqueline Martin

Jacqueline Martin  |  713.229.0360  |


HOUSTON, TEXAS – November 21, 2022

Oliva Gibbs is pleased to announce the addition of Senior Lawyer, Gregory Harjo, in our Oklahoma City office. Greg has been practicing oil and gas law for nearly two decades and has advised on hundreds of drilling and division order title opinions. He represents a range of clients, including large, publicly traded companies and small, local producers and investors on complex title and transactional matters throughout Oklahoma, with particular experience advising on matters involving Anadarko Basin assets.

Greg also brings additional Native American and Tribal law experience to the firm, advising on oil, gas, and mineral transactions and regulatory issues involving federal lands.

“We are delighted to welcome Greg to the firm and further expand our Oklahoma team with another excellent oil and gas attorney,” said Oklahoma City office lead, Chuck Lundeen.  “In addition to his extensive legal and regulatory experience, Greg is also a lifelong Oklahoman and a wonderful colleague and community member. He is a great representative of our core values,” he added.

The firm’s Oklahoma City practice recently relocated to an office complex with more space for continued strategic growth in the Oklahoma market. The new offices are located at 301 Lilac Drive in Edmond.

About the Firm

Oliva Gibbs LLP is a nationally recognized law firm with offices in Houston, TX, Columbus, OH, Lafayette, LA, and Edmond, OK. Highly skilled oil and gas attorneys anchor a team focused on title opinions; mineral transactions; mergers, acquisitions, joint ventures, and sales; energy contracts; and regulatory and risk mitigation matters. The team includes former landmen and attorneys certified in Oil, Gas and Mineral law by the Texas Board of Legal Specialization. For more information, visit us at

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