US Land Life

Karnes County, TX

Pipeline and Surface-Use Easements in Karnes County

Karnes County didn't just have some oil-and-gas activity during the Eagle Ford Shale boom -- it led the entire play in production, and roughly 2,000 miles of new pipeline went into the ground here in a single four-year stretch. For a land buyer, that changes the easement question from "could this parcel have one" to "which ones does it have, and what do they actually allow."

This page covers what's specific to Karnes County. For the general explanation, see the national guide.

Why easement density here is different in kind, not just degree

Karnes County produced more oil than any other county in the Eagle Ford Shale play during the boom -- roughly 176,000 barrels per day from nearly 1,500 wells at the most recent count found in this research -- and that level of production didn't happen without a matching buildout of gathering lines, transmission pipelines, and access roads across the county's rural land. More than 1,200 drilling permits were approved and roughly 2,000 miles of new pipeline were laid in a single four-year window during the boom. Compare that to a typical rural Texas county, where a buyer might reasonably expect zero or one pipeline easement crossing a given parcel: in Karnes County, the realistic starting assumption for a rural tract of any real size is that it either already carries an easement, sits adjacent to one, or will be approached about one, not that it's unlikely to be affected at all.

The named pipelines actually crossing the county

The aggregate "roughly 2,000 miles" figure isn't abstract -- Karnes County sits at the junction of several named, still-operating midstream systems. Magellan Midstream and Copano Energy's Double Eagle Pipeline, whose 37-mile eastern leg originates in Karnes County, has carried Eagle Ford condensate to Magellan's Corpus Christi terminal since 2013 (Kinder Morgan bought a 50% stake in the system that same year). Copano's DeWitt-Karnes Pipeline runs 38 miles of 24-inch rich-gas gathering line through the county at 350 MMcf/day capacity, feeding Copano's Houston Central plant. Boardwalk Field Services operates roughly 400 miles of gathering pipeline across Karnes and neighboring DeWitt County, and Teak Midstream, Plains Eagle Ford Energy (which names its own system the "Karnes Pipeline System" in its Railroad Commission T-4 filing), Ironwood Midstream, and Arrowhead Gathering Company all hold active gathering or crude-transport infrastructure specifically sited in the county. For a specific parcel, a landman or title company can identify which of these systems, if any, actually crosses it -- the point for a buyer is that "a pipeline easement" in Karnes County usually means one of these named, commercial systems rather than a one-off line to a single well pad.

What Texas law actually gives a mineral owner or pipeline company

Texas treats the mineral estate as dominant over the surface estate -- meaning a mineral owner or their lessee has an implied legal right to use as much of the surface as is reasonably necessary to explore for and produce the minerals, even without a separate surface agreement, subject to the judicial accommodation doctrine requiring the mineral developer to accommodate an existing surface use (like grazing or farming) where a reasonable alternative method exists. A pipeline company is a somewhat different case: it generally needs its own easement, negotiated with the surface owner or, if negotiation fails, obtained through eminent domain provided the pipeline qualifies as a common carrier -- but that qualification is not automatic just because a company has filed for a T-4 permit with the Railroad Commission. The Texas Supreme Court held in Texas Rice Land Partners, Ltd. v. Denbury Green Pipeline-Texas, LLC (2012) that a T-4 common-carrier permit does not conclusively establish eminent-domain power: a landowner can challenge common-carrier status in court, and the burden then shifts to the pipeline company to actually prove it. That gives a Karnes County surface owner real legal standing to contest a company's condemnation authority, not just negotiate around it. Beyond that, Texas law entitles a surface owner facing a pipeline easement request to a landowner's bill of rights, a written appraisal from a certified appraiser, and a good-faith offer before any condemnation proceeding -- and most pipeline easements in Texas are in fact negotiated voluntarily rather than condemned, which gives a surface owner real, if imperfect, leverage in the negotiation.

What to check before buying a specific Karnes County parcel

Given the density described above, a buyer evaluating a specific tract should treat pipeline and well-pad easement history as a core due-diligence item, not an afterthought. A title company or landman can pull the recorded easement, right-of-way, and surface-use-agreement history for a specific parcel through the Karnes County Clerk's records -- worth doing before assuming a quiet-looking pasture has no infrastructure underneath or adjacent to it. If an easement is already recorded, read its actual terms rather than assuming a standard width or use: pipeline easements vary in whether they permit multiple lines, future expansion, above-ground equipment (like a metering station or valve set), and vehicle access across the rest of the property, and those terms carry forward to a new owner regardless of who negotiated them originally. If no easement currently exists but the parcel sits near active drilling or existing gathering infrastructure, budget for the real possibility of being approached during your ownership, and know before that conversation starts that Texas law entitles you to a written appraisal and a good-faith offer, not just a take-it-or-leave-it number.

Mineral rights: check whether they convey with the surface at all

Separately from easement history, confirm during due diligence whether the mineral estate for a specific Karnes County parcel is included in the sale at all, or whether it was severed by a prior owner -- a genuinely common situation in a county with this much drilling history, and one where a seller's disclosure isn't always complete or accurate. A title company's mineral search, run alongside the surface title search, is the reliable way to confirm current mineral ownership; if the minerals are severed and actively leased, that lessee's rights (and their implied surface-access rights described above) attach to the land regardless of who buys the surface. This is worth resolving before closing, not after, since it directly affects what future surface disruption a new owner should realistically expect.

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Sources

  1. Top Oil-Producing Counties in the Eagle Ford Basin (2025 Update) — Novi Labs (accessed 2026-09)
  2. Shale of the Century: Small Towns Dazed by Eagle Ford Influx — Texas Real Estate Research Center, Texas A&M University (accessed 2026-09)
  3. Surface Owner Rights — Texas Oil & Gas Association (accessed 2026-09)
  4. Texas Mineral Owner's Implied Right to Use the Surface — Chas S. Middleton and Son (oil and gas law) (accessed 2026-09)
  5. Mineral Rights in Texas: What Land Buyers Need to Understand — Joe Sells Ranches (accessed 2026-09)
  6. Condensate City: Eagle Ford Crude Infrastructure, Part 2 (Double Eagle Pipeline) — RBN Energy (accessed 2026-09)
  7. Copano Energy: Ramping Up Infrastructure in the Eagle Ford (DeWitt-Karnes Pipeline) — Hart Energy (accessed 2026-09)
  8. Eagle Ford Infrastructure Making Strides (Boardwalk Field Services, Teak Midstream) — Hart Energy (accessed 2026-09)
  9. Plains Eagle Ford Energy LLC -- T-4 Permit ("Karnes Pipeline System") — Railroad Commission of Texas (accessed 2026-09)
  10. Texas Rice Land Partners, Ltd. v. Denbury Green Pipeline-Texas, LLC, 363 S.W.3d 192 (Tex. 2012) — Haynes Boone (case summary) (accessed 2026-09)

Last reviewed 2026-09