Zackary D. Callarman

Zackary D. Callarman



Zack focuses his practice on the representation of banks, financial institutions, corporate lenders, hedge and mezzanine funds, and business associations in corporate and commercial transactions spanning across multiple industries.

Zack has significant experience working with oil and gas transactional matters including mergers, acquisitions, dispositions, entity formation and structure, securities offerings, and reserve-based financing, and additionally counsels private and public companies in a broad range of general corporate and commercial matters.

Zack’s experience further includes title examination and the preparation of deeds, leases, joint operating agreements, assignments and various other documents utilized by upstream oil & gas companies and general legal counsel for midstream/downstream operations for pipeline and refining companies.

Education & Admissions

Texas A&M University School of Law (J.D., 2013), Dean’s List

Baylor University (B.A., 2009), Dean’s List


  • Texas

News & Resources

Legal Writings

  • 04.01.17 - The Pich Exception: Reservations, Exceptions to Warranty, and Exceptions to Grant in the Chain of Title. Louisiana State University Journal of Energy Law and Resources (Volume V, Issue 1)
  • 01.01.14 - Seven Thousand Feet Under: Does Drilling Disturb the Dead? Or Does Drilling Underneath The Dead Disturb the Living? An Analysis of Various Laws Concerning Drilling to Extract Oil and Gas Underneath Cemeteries. West’s Real Estate Law Journal, Vol 43, No 2

Select Presentations

  • 10.17.17 - Reservations, Exceptions to Warranty, and Exceptions to Grant in the Chain of Title, Permian Basin Landmen's Association (PBLA) Luncheon
  • 01.30.16 - Exceptions and Reservations in the Chain of Title, SAAPL 2016 Mid-Winter Seminar
  • 03.19.15 - Oil and Gas Drilling Under Cemeteries, Natural Resources Law Section of the San Antonio Bar Association (SABA) Luncheon
  • 08.27.14 - Basic Oil and Gas Law and Case Law Update, Oil and Gas Rights in Texas Seminar

Professional & Civic

Professional Achievements

  • State Bar of Texas, Oil, Gas and Energy Resources Law Section
  • Dallas County Young Lawyers Association
  • Dallas County Bar Association
  • Phi Delta Phi Legal Honor Society
  • Young Professionals in Energy (Dallas Chapter), President
Zackary D. Callarman