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Oil/Gas/Affidavit of Heirship


Hello. My question is this.

After my father died, leaving myself and my siblings his oil and gas royalties, we had my mother-in-law do an Affidavit of Heirship. She is now deceased. Is that Affidavit still legally valid?


This is a legal question best answered by an attorney. But for the purposes of an oil company changing its revenue distribution records, most oil and gas companies will consider it to be legally valid and will honor it if it is notarized and was already filed of record into the county real property records where the land is located, before your mother-in-law passed away.  If you happen to be working with an oil and gas company that disputes its legal validity for their purposes, you will need to consult an attorney to learn what you should do next.  Good luck, and Happy Holidays.


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Marsha Breazeale, M.Ed., CDOA, CPLTA


All questions regarding division orders; ownership decimal calculations; title ownership and payer record changes (testate/intestate inheritance; deed; assignment; court order); oil and gas lease analysis for record-keeping and purposes of payment by operator or payer; pooling, horizontal wells, horizontal well allocation units; unclaimed property reporting; royalty owner relations questions. All questions concerning administration of surface land contracts and payment questions, such as for Surface Right-of-Way, Sub-Surface Right-of-Way, Easement, Surface Use Agreement. All questions regarding industry-standard and company-specific policies that affect land owners.


Sr. Staff Division Order Analyst. Certified Division Order Analyst (CDOA, National Association of Division Order Analysts) and Certified Lease Analyst (CPLTA, National Association of Professional Lease and Title Analysts) with 35 years of experience as a combination division order analyst and lease analyst in exploration and production in the oil and gas industry.

National Assoc. of Division Order Analysts (NADOA), National Association of Division Order Analysts (NALTA), American Association of Professional Landmen (AAPL), American Society of Trainers and Developers (ASTD)

"How an Oil & Gas Exploration & Production Company Operates" and "Principles of Oil & Gas Lease Analysis: Standard Clauses", Oil Patch Press; Articles in NADOA Magazine; LandFocus EDU Professional Training Manuals

Education/Credentials Management from Our Lady of the Lake University in San Antonio; M.Ed. in Instructional Design from WGU Texas.

Past/Present Clients
Past 15 years: GeoSouthern Energy Corporation; Contango Oil Co./Crimson Exploration & Operating Inc.; Apache Corporation; BP America; Marathon Oil; Newfield Exploration

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