Texas
Buying Land in Midland County, Texas
Midland County -- the commercial center of the Permian Basin's Midland sub-basin -- is built on oil, and that shapes the land market here more than almost anywhere else in Texas. A slice of the county carries a formal state groundwater-problem designation, and severed mineral ownership is simply the norm on productive acreage.
Groundwater: a formally designated problem area outside district coverage
TCEQ's Priority Groundwater Management Area program exists to flag parts of Texas with critical, documented groundwater problems -- and a specific area spanning southeastern Midland County, northeastern Upton County, and northern Reagan County has carried that designation since it was adopted under 30 TAC Section 294.35. Part of the reasoning behind the designation is that the affected area is not covered by any groundwater conservation district, meaning it lacks the kind of local board-level oversight that manages well spacing, production limits, and long-term planning in districted parts of the state. For a buyer, this cuts two ways: it's a genuine, state-documented signal that groundwater supply and management deserve extra scrutiny in this specific slice of the county, but it also means there's no single local district office to call for permitting rules the way a buyer in a GCD-covered county would have -- confirm directly with TCEQ's groundwater planning staff whether a specific parcel falls inside the designated PGMA boundary, and if so, what water-supply planning documentation exists for that area.
Outside that specific designated area, Midland County's water picture is shaped heavily by the City of Midland's own municipal supply infrastructure -- including well fields such as the T-Bar and Paul Davis Well Field, built or expanded specifically to extend the city's water supply. That municipal-scale groundwater development is a different question from private domestic well feasibility on a specific rural parcel, but it's a sign that groundwater in this part of West Texas is treated as a genuinely managed, planned-for resource by the largest user in the county -- worth keeping in mind when evaluating what's realistically available for a smaller private use nearby.
Septic and subdivision: platting and permitting are directly linked
Midland County Health Department holds TCEQ authorized-agent status for on-site sewage facility (OSSF/septic) permitting, meaning septic applications for unincorporated county land are reviewed locally rather than through a TCEQ regional office. What's worth flagging specifically for Midland County is how tightly the county ties septic eligibility to platting status: for any property within a city's limits or its extraterritorial jurisdiction, the county will not issue a permit for a new or expanded septic system unless the property already has an approved, recorded plat on file. That means a parcel's platting history isn't just a subdivision-law technicality here -- it can directly gate whether you're able to install or expand a septic system at all if the land sits near Midland or another city in the county.
On the platting side itself, Midland County follows the general Texas rule that dividing land into two or more parts to lay out lots or streets requires a plat approved by the Commissioners Court and filed with the County Clerk, with recognized exceptions for agricultural-use divisions, transfers to a family member, and divisions where every resulting lot is 10 acres or larger with no new streets. Midland County itself has no general zoning ordinance, consistent with the statewide default for unincorporated Texas land -- but confirm current platting-exemption criteria and any city ETJ overlay directly with the County Clerk's office before assuming a specific division qualifies.
A land market built on oil: severed minerals as the baseline assumption
Midland's identity as an oil town runs back to the early 1950s: the Texas State Historical Association's own handbook credits the discovery and rapid development of the Spraberry field -- a formation whose productive sands turned out to underlie essentially the entire Midland Basin -- with setting off the postwar economic boom that built much of the modern city, after a 1950-51 drilling frenzy once operators realized wells drilled into the Spraberry-Dean sands were rarely dry holes. Today's horizontal drilling boom in the Wolfcamp and Spraberry formations is the direct descendant of that history, and it has left a specific, practical legacy on the land market here: on productive Midland Basin acreage, mineral rights have typically been severed from the surface estate at some point, often decades ago, meaning the surface owner and the mineral owner are frequently different parties with different, sometimes conflicting interests in how the land is used.
For a land buyer, this makes a title search covering mineral history -- not just surface chain of title -- a genuinely essential step in Midland County in a way it isn't in most other parts of Texas. Ask specifically whether the mineral estate has been severed, whether any oil-and-gas lease is currently active on the property, and whether any existing surface-use agreement, pipeline easement, or well-pad site already encumbers the surface. Because the mineral estate is legally dominant over the surface estate under Texas law, an active lease elsewhere on the property can affect what you're able to do with the surface even if you have no ownership interest in what's being produced beneath it.
Who to Call Before Buying Land in Midland County
Midland County has no general zoning ordinance for its unincorporated area, consistent with the statewide default; the City of Midland itself has its own separate zoning and platting code covering land inside city limits and its ETJ, addressed by that city directly rather than the county.
Environmental Health
Midland County Health Department
On-site sewage facility (OSSF/septic) permitting and inspections for unincorporated county land, under the county's TCEQ authorized-agent status.
Subdivision & Land Development
Midland County Commissioners Court
Plat approval, platting exemptions, and subdivision regulations for unincorporated county land.
Other
Texas Commission on Environmental Quality -- Groundwater Planning & Assessment
Whether a specific parcel falls inside the Reagan, Upton, and Midland County Priority Groundwater Management Area, and what water-supply planning documentation applies there.
Assessor / Property Tax
Midland Central Appraisal District
Assessed value, property tax, and agricultural (ag/wildlife) valuation questions for a specific parcel.
Recorder / Clerk / Land Records
Midland County Clerk
Recorded deeds, mineral deeds, oil-and-gas leases, and plat history for a specific parcel.
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Get local guidanceSources
- Priority Groundwater Management Areas — Texas Commission on Environmental Quality (TCEQ) (accessed 2026-09)
- 30 Tex. Admin. Code § 294.35 -- Designation of Reagan, Upton, and Midland County Priority Groundwater Management Area — Legal Information Institute, Cornell Law School (accessed 2026-09)
- Midland's Water Sources — City of Midland, Texas (accessed 2026-09)
- Septic Sewer Permitting — Midland County, Texas (accessed 2026-09)
- Frequently Asked Questions (Subdivision Platting) — Midland County, Texas (accessed 2026-09)
- Exploring the Spraberry-Dean Sandstone Fields: A Historical Overview — Texas State Historical Association (accessed 2026-09)
- Midland County: History, Geography, and Economy — Texas State Historical Association (accessed 2026-09)
Last reviewed 2026-09