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Royalty Clerk

Harlingen · Cameron County, Texas

Oil and gas wells in and near ZIP code 78550

  • 0wells inside the ZIP
  • 0within 3 miles of it
  • 1drilling location in two years
  • 94square miles of land

The ZIP code and 3 miles around it

Wells and drilling locations in and around 78550

Map of ZIP code 78550, Texas, outlined, with 0 oil and gas wells inside it and 0 within 3 miles of its edge as dots, and 1 drilling location permitted in two years.
  • Drilling locations1Permits issued in the last two years
  • Producing wells0On a lease reporting production now
  • Not producing0Shut in, inactive or no lease on record
  • Plugged0The state's wellbore record says plugged

The solid line is ZIP code 78550 as the US Census Bureau draws it; the dashed line is 3 miles out. The counts are for everything inside the dashed line: 0 of the wells are inside the ZIP itself. Sources: Railroad Commission of Texas well layers and permit files, US Census Bureau ZIP Code Tabulation Areas and county outlines, town points from GeoNames (CC BY 4.0), base map from USGS The National Map.

See the whole Texas well map

No well on the state's map lies inside ZIP code 78550 or within 3 miles of it. The nearest is 10 miles from the middle of the ZIP. The state issued 1 drilling permit with a well location within 3 miles in the last 24 months, the newest on May 22, 2026.
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You may show this map on any site, unchanged. Keep the credit line and its link to Royalty Clerk under the map. The picture updates by itself as the state records new wells and permits.

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<a href="https://royaltyclerk.com/texas/zip/78550"><img src="https://royaltyclerk.com/maps/zip/78550.svg" alt="Map of ZIP code 78550, Texas, outlined, with 0 oil and gas wells inside it and 0 within 3 miles of its edge as dots, and 1 drilling location permitted in two years." width="1000" height="884" loading="lazy" style="max-width:100%;height:auto;border:0"></a>
<p style="margin:4px 0 0;font-size:14px">Map: <a href="https://royaltyclerk.com/texas/zip/78550">Oil and gas wells in ZIP code 78550, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>

In numbers

Wells in 78550 and within 3 miles

Every well with a location on the state's map, by what it is now. The second column takes in the ZIP and the 3 miles around it.
Oil and gas wells and drilling permits in ZIP code 78550 and within 3 miles of it
WhatInside 78550Within 3 miles
Producing wells00
Not producing wells00
Plugged wells00
Drilling permits, last 24 months01
All wells00

ZIP code 78550 covers 94 square miles of land and 0.8 of water.

Drilling locations

The newest drilling permits in and near 78550

The newest permit with a well location inside the ZIP or within 3 miles of its edge, with the coordinates of the surface location.
Newest drilling permits in and within 3 miles of ZIP code 78550
IssuedLease and wellWhere
2026-05-22WILDCAT 7vertical · API 42-061-30542 · permit 0915604WWM Operating, LLC0.3 mi outside26.19025, -97.59971 on OpenStreetMap (opens in a new tab)

A permit is permission to drill, not a well. Source: Railroad Commission of Texas drilling permits. This week's permits, statewide

Nearest wells

The wells nearest the middle of 78550

Measured from a point inside the ZIP (26.24366, -97.65494) to each well's surface location, at any distance.
  1. 1Willamar West Unit 12510 mi NEProducing · API 42-489-00456 · Citation Oil & Gas Corp.
  2. 2Willamar West Unit 11410 mi NEPlugged · API 42-489-00457 · Citation Oil & Gas Corp.
  3. 3Willamar West Unit 11510 mi NEPlugged · API 42-489-00419 · Citation Oil & Gas Corp.
  4. 4Willamar West Unit 5310 mi NEPlugged · API 42-489-00420 · Citation Oil & Gas Corp.
  5. 5Willamar West Unit 10610 mi NEPlugged · API 42-489-00421 · Citation Oil & Gas Corp.
  6. 6Willamar West Unit 11310 mi NEProducing · API 42-489-00458 · Citation Oil & Gas Corp.

Around it

Towns and ZIP codes around 78550

Towns

ZIP codes that touch 78550

All of Cameron County: leases, operators and production · Cameron County well map · Every Texas ZIP code

FAQ

Questions people ask

Are there oil or gas wells near 78550?

No well on the state's map lies inside ZIP code 78550 or within 3 miles of it. The nearest is 10 miles from the middle of the ZIP. The state issued 1 drilling permit with a well location within 3 miles in the last 24 months, the newest on May 22, 2026.

Is this the same area as the Postal Service's ZIP code?

Nearly. The Postal Service does not publish ZIP code boundaries, so we use the US Census Bureau's ZIP Code Tabulation Area for 78550, built from census blocks where most addresses use that ZIP. The edges can differ from mail delivery by a street or two, and a few ZIP codes (post office boxes, single buildings) have no area of their own.

Do I own minerals under a well in 78550?

A well nearby says nothing about who owns the minerals under it. The county's mineral roll lists who is paid on each producing lease. Search a name to see whether the Cameron County roll lists it.

Search a name

Where do the numbers come from?

Every dot is a well location from the Railroad Commission of Texas well layers, or a drilling permit's surface location from its permit files, issued in the last 24 months. A well counts as producing when its lease reported oil or gas in its newest months, and as plugged when the state's wellbore record says so. Nothing on this page comes from owners or from addresses.

Own land or minerals near 78550?

See whether a county roll lists your name, and get an email when a permit or a new well is filed near you.

Search a family nameWatch Cameron County

Sources

This page is left out of search engines until 10 or more wells lie inside the ZIP.