The Midland Basin is the eastern half of the Permian, home to the stacked Spraberry and Wolfcamp (Wolfberry) play. Core counties include Midland, Martin, Howard, Glasscock, Upton, and Reagan, with major operators like Diamondback, ExxonMobil, and ConocoPhillips. Value depends on net mineral acres, production, operator, inventory, and prices. ARB buys Midland Basin interests directly with no fees.
The Midland Basin is the eastern half of the Permian Basin and one of the most prolific oil-producing regions in the world. Home to the stacked Spraberry and Wolfcamp formations — together known as the Wolfberry play — the Midland Basin has been a focus of intense horizontal development for more than a decade. This guide explains its geology, key counties, operators, and the factors that drive mineral value.
Midland Basin vs. Delaware Basin
The Permian Basin is made up of several sub-basins. The two most active are the Midland Basin on the east and the Delaware Basin on the west, separated by the Central Basin Platform. The Midland Basin is generally shallower and less over-pressured than the Delaware, but its stacked Spraberry and Wolfcamp section is thick, oil-rich, and remarkably continuous across the core counties.
Geology: The Spraberry and Wolfcamp
Midland Basin operators target the Lower and Middle Spraberry along with multiple Wolfcamp benches (Wolfcamp A, B, C, and D). Because these zones are stacked on top of one another, a single section can support many horizontal wells across different intervals — creating the deep drilling inventory that underpins long-term value in the basin core.
The Wolfberry — the combined Spraberry and Wolfcamp section — is the workhorse of the Midland Basin and the reason its core counties command premium pricing.
Key Midland Basin Counties
The core of the Midland Basin includes Midland, Martin, Howard, Glasscock, Upton, Reagan, and Midland-adjacent counties. Martin and Midland counties sit in the structural heart of the basin and are widely considered premium acreage. Howard County, on the eastern flank, has transformed into a major horizontal oil play. Each county has its own dedicated page on our site with more detail.
- Midland County — the commercial hub and namesake of the basin
- Martin County — premium, oil-rich core acreage
- Howard County — a major modern horizontal play on the eastern flank
- Glasscock, Upton, and Reagan counties — deep, stacked pay in the south
Operators and Value Drivers
Major operators in the Midland Basin include Diamondback Energy, ExxonMobil (XTO), ConocoPhillips, and others. As with the rest of the Permian, mineral value is driven by your net mineral acres, production status, operator quality, the number of remaining undrilled locations, and commodity prices. For a full breakdown, see our guides on valuing Permian minerals and value per acre.
Selling Midland Basin Minerals to ARB
ARB is an active, direct buyer of Midland Basin mineral and royalty interests across all of the core counties. We research your acreage and deliver a transparent, no-obligation offer — no brokers, no middlemen, and no fees to you.
Key Takeaways
- The Midland Basin is the eastern sub-basin of the Permian, home to the Spraberry and Wolfcamp plays.
- Stacked benches allow many horizontal wells per section, creating deep drilling inventory.
- Core counties include Midland, Martin, Howard, Glasscock, Upton, and Reagan.
- Major operators include Diamondback Energy, ExxonMobil, and ConocoPhillips.
- ARB is a direct buyer of Midland Basin interests with no brokers and no fees.
Frequently Asked Questions
What is the difference between the Midland Basin and the Delaware Basin?
Both are sub-basins of the Permian. The Midland Basin is on the east and is generally shallower and less over-pressured, while the Delaware Basin is on the west with a thicker, over-pressured section. They are separated by the Central Basin Platform.
What is the Wolfberry?
The Wolfberry refers to the combined Spraberry and Wolfcamp section that operators develop together in the Midland Basin.
Which Midland Basin counties are most active?
Core counties include Midland, Martin, Howard, Glasscock, Upton, and Reagan, with Martin and Midland counties widely viewed as premium acreage.
Who operates in the Midland Basin?
Active operators include Diamondback Energy, ExxonMobil (XTO), ConocoPhillips, and others, depending on the specific unit and lease.
Does ARB buy minerals across the whole Midland Basin?
Yes. ARB is an active, direct buyer across all of the core Midland Basin counties, with no fees to sellers.
Disclaimer: American Royalty Buyers (ARB) is not a tax, legal, or investment advisor, and nothing in this article should be construed as tax, legal, or investment advice. This information is general in nature and provided solely for your convenience and education. Every owner's situation is different — always consult a qualified CPA, tax professional, attorney, or financial advisor before making any decision regarding your mineral rights, taxes, or finances.