Upstream
Prospect Generation
Prospects generated from proprietary geology, with lease acquisitions to secure them, developed alongside operator partners.
An oil and gas family office with a primary focus on upstream investments across the Haynesville and Bakken Shale plays.
By geologist Mark S. Kelldorf in Dallas, Texas.
Our main technical focus area.
Positioned to benefit from growing demand driven by AI and LNG exports.
Our core competencies are proprietary technical information and long-standing, high-quality relationships with operators and mineral owners.
With ~1,000 minerals and royalties transactions, Arkoma is the most experienced asset manager in the most relevant U.S. LNG basin, the Haynesville Shale.
We capitalize on proprietary geologic knowledge through the acquisition of upstream assets.
We structure development joint ventures with high-quality operators.
Arkoma is founded.
Founder and PresidentWith over 40 years of experience as a geologist, Mark Kelldorf has built a remarkable career in the oil and gas industry. In 1983, he founded the first Arkoma entity, which has since grown into a successful enterprise. Mark’s expertise lies in the technical evaluation and strategic acquisition of oil and gas assets across the United States.
Our core is upstream oil and gas in two basins: the Haynesville, our main natural gas area, and the Bakken, our main oil area. Real estate rounds out a portfolio built on real, tangible assets.
Our main natural gas area.
Our main oil area.
Prospects generated from proprietary geology, with lease acquisitions to secure them, developed alongside operator partners.
Royalty interests across our Haynesville and Bakken positions.
Built on long-standing relationships with mineral owners.
Real estate investments that diversify the family office beyond oil and gas.
Seven years of feast, seven years of famine.The Joseph principle · Genesis 41
We follow the Joseph principle. Oil and gas moves in cycles, and we invest with that in mind. Recognizing those cycles and staying disciplined with our capital, without leverage, keeps us in the game and lets us capitalize on opportunities when others can't.
Our prospect generation business takes an opportunity from geologic idea to developed asset. We partner with public and private companies seeking upstream exposure to physical natural gas, handling every step:
How a Haynesville natural gas well comes to life, step by step.
A drilling rig bores straight down roughly two miles, then gradually turns the wellbore horizontal and drills sideways through the Haynesville Shale, keeping the well inside the gas-bearing rock for thousands of feet.
Once drilled, the well is completed. Steel casing is cemented in place, the horizontal section is perforated, and water and sand are pumped in at high pressure to open small fractures in the rock (hydraulic fracturing). Those fractures give the natural gas a path to flow into the well.
Arkoma develops its prospects alongside operating partners. Through development joint ventures, our geology and acreage are paired with an operator that drills and completes the wells, and our team works on location with them.
When the well is ready to produce, a "Christmas tree" is installed on top of the wellhead. It is an assembly of valves and fittings that controls the pressure and flow of gas leaving the well, lets crews safely shut the well in, and sends production to the pipeline. It gets its name from its branching shape.
We believe that Christianity is not just a belief, but a way of life. We strive to live out the scriptures in our actions, demonstrating God's love in everything we do.
We partner with local organizations and individuals who share our vision of reaching our community for Jesus Christ.
For over 30 years, Mark has led weekly Bible studies in Rockwall, Texas, for high school students and professionals alike.
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