Caldwell County, Texas
Oil and gas wells in and near ZIP code 78661
- 147wells inside the ZIP
- 1,339within 3 miles of it
- 5drilling locations in two years
- 4.1square miles of land
The ZIP code and 3 miles around it
Wells and drilling locations in and around 78661
- Drilling locations5Permits issued in the last two years
- Producing wells948On a lease reporting production now
- Not producing80Shut in, inactive or no lease on record
- Plugged311The state's wellbore record says plugged
The solid line is ZIP code 78661 as the US Census Bureau draws it; the dashed line is 3 miles out. The counts are for everything inside the dashed line: 147 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.
Use this map on your site
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.
<a href="https://royaltyclerk.com/texas/zip/78661"><img src="https://royaltyclerk.com/maps/zip/78661.svg" alt="Map of ZIP code 78661, Texas, outlined, with 147 oil and gas wells inside it and 1,339 within 3 miles of its edge as dots, and 5 drilling locations permitted in two years." width="1000" height="996" 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/78661">Oil and gas wells in ZIP code 78661, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>In numbers
Wells in 78661 and within 3 miles
| What | Inside 78661 | Within 3 miles |
|---|---|---|
| Producing wells | 60 | 948 |
| Not producing wells | 9 | 80 |
| Plugged wells | 78 | 311 |
| Drilling permits, last 24 months | 0 | 5 |
| All wells | 147 | 1,339 |
ZIP code 78661 covers 4.1 square miles of land: about 36 wells to the square mile.
Drilling locations
The newest drilling permits in and near 78661
| Issued | Lease and well | Where | Operator |
|---|---|---|---|
| 2026-09-03 | JOHNSON 1Avertical · API 42-055-35201 · permit 0918387Excel Operating, LLC | 2.6 mi outside29.71367, -97.67794 on OpenStreetMap (opens in a new tab) | Excel Operating, LLC |
| 2026-05-12 | JOHNSON 1Avertical · API 42-055-35201 · permit 0915498Onemoretime, LLC | 2.6 mi outside29.71367, -97.67794 on OpenStreetMap (opens in a new tab) | Onemoretime, LLC |
| 2024-12-03 | TRAMMELL, H. S. 5Hhorizontal · API 42-055-35197 · permit 0904265Texas Petroleum Investment Co. | 1.4 mi outside29.76732, -97.69555 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-12-02 | SCHUBERT, A. H. 1Hhorizontal · API 42-187-33722 · permit 0904257Texas Petroleum Investment Co. | 2.6 mi outside29.67573, -97.76923 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-11-26 | PROCTOR , G.W. 5Hhorizontal · API 42-055-35198 · permit 0904266Texas Petroleum Investment Co. | 0.1 mi outside29.72455, -97.72197 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-11-14 | BYRD 1Hhorizontal · API 42-055-35195 · permit 0903635Texas Petroleum Investment Co. | in 7866129.73700, -97.71618 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-11-01 | MERCER, ALF 3Hhorizontal · API 42-055-34793 · permit 0903622Texas Petroleum Investment Co. | 0.5 mi outside29.75637, -97.70428 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-10-30 | E.J. HARDEMAN HEIRS 1Hhorizontal · API 42-055-35196 · permit 0903642Texas Petroleum Investment Co. | 0.0 mi outside29.75016, -97.71312 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-10-24 | MERCER, MILLS 3Hhorizontal · API 42-055-35194 · permit 0903458Texas Petroleum Investment Co. | 0.1 mi outside29.75212, -97.70906 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-10-02 | BRANYON, W. 1Hhorizontal · API 42-055-35193 · permit 0903004Texas Petroleum Investment Co. | 1.8 mi outside29.76626, -97.68579 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-09-27 | ALLEN, J.E. -A- 15Hhorizontal · API 42-187-33721 · permit 0902816Texas Petroleum Investment Co. | 1.0 mi outside29.69739, -97.75491 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-08-13 | ROBERTS A 2Hhorizontal · API 42-187-33720 · permit 0901908Texas Petroleum Investment Co. | 0.9 mi outside29.69784, -97.74549 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-08-13 | MCKEAN,A.J.&J.M. -A- /137.50AC./ 2Hhorizontal · API 42-187-33719 · permit 0901824Texas Petroleum Investment Co. | 0.6 mi outside29.70240, -97.74470 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
| 2024-08-06 | SECRETARIAT 2SWvertical · API 42-055-80086 · permit 0901816Millennium Exploration Co. LLC | in 7866129.73155, -97.72323 on OpenStreetMap (opens in a new tab) | Millennium Exploration Co. LLC |
| 2024-08-01 | MERCER 8H UNIT 8Hhorizontal · API 42-055-35192 · permit 0901659Texas Petroleum Investment Co. | 0.6 mi outside29.75267, -97.69790 on OpenStreetMap (opens in a new tab) | Texas Petroleum Investment Co. |
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 78661
- 1Tiller, Dorset & W.j. 4Hin townProducing · API 42-055-35180 · Texas Petroleum Investment Co. · inside 78661
- 2Dorset-Tiller 16in townNot producing · API 42-055-31156 · Texas Petroleum Investment Co. · inside 78661
- 3Tiller, W. J. 3Hin townProducing · API 42-055-34888 · Texas Petroleum Investment Co. · inside 78661
- 4Dorset-Tiller 7in townPlugged · API 42-055-03409 · Texas Petroleum Investment Co. · inside 78661
- 5Dorset-Tiller 15in townPlugged · API 42-055-03413 · Texas Petroleum Investment Co. · inside 78661
- 6Merriweather, John 170.1 mi EPlugged · API 42-055-32926 · E & W Oil, Inc. · inside 78661
Who runs them
Operators of the wells in 78661
- 1Texas Petroleum Investment Co.106 wells104 on producing leases
- 2Millennium Exploration Co. LLC23 wells1 on producing leases
- 3Rodessa Operating Company11 wellsnone on a producing lease
- 4E & W Oil, Inc.5 wellsnone on a producing lease
- 5CW Dalcan Management Svcs, Ltd.1 wellnone on a producing lease
- 6Sotol Energy, Inc.1 wellnone on a producing lease
Around it
Towns and ZIP codes around 78661
Towns
ZIP codes that touch 78661
All of Caldwell County: leases, operators and production · Caldwell County well map · Every Texas ZIP code
FAQ
Questions people ask
Are there oil or gas wells near 78661?
Yes. 147 oil and gas wells with a location on the state's map lie inside ZIP code 78661, 60 of them on producing leases, and 1,339 within 3 miles of its edge. The state issued 5 drilling permits with a well location within 3 miles in the last 24 months, the newest on September 3, 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 78661, 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 78661?
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 Caldwell County roll lists it.
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 78661?
See whether a county roll lists your name, and get an email when a permit or a new well is filed near you.
Sources
- US Census Bureau, 2020 ZIP Code Tabulation Areas, cartographic boundary file at 1:500,000 (cb_2020_us_zcta520_500k)www2.census.gov/geo/tiger/GENZ2020/shp/cb_2020_us_zcta520_500k.zip · file of May 19, 2023, read November 14, 2026
- Railroad Commission of Texas, well layers and drilling permit fileswww.rrc.texas.gov/resource-center/research/data-sets-available-for-download/ · loaded as the state publishes them; figures kept six hours
- US Census Bureau, cartographic boundary files (county lines), through the us-atlas package 3.0.1www.census.gov/geographies/mapping-files/time-series/geo/cartographic-boundary.html · built into the site with its well maps
- GeoNames, towns and their points (CC BY 4.0)www.geonames.org/ · built into the site with its town pages
- USGS The National Map, basemap services (topo and imagery map under the wells), public domainapps.nationalmap.gov/services/ · tiles drawn under the map when it is made