Bexar County, Texas
Oil and gas wells in and near ZIP code 78002
- 380wells inside the ZIP
- 1,554within 3 miles of it
- 12drilling locations in two years
- 40square miles of land
The ZIP code and 3 miles around it
Wells and drilling locations in and around 78002
- Drilling locations12Permits issued in the last two years
- Producing wells1,027On a lease reporting production now
- Not producing208Shut in, inactive or no lease on record
- Plugged319The state's wellbore record says plugged
The solid line is ZIP code 78002 as the US Census Bureau draws it; the dashed line is 3 miles out. The counts are for everything inside the dashed line: 380 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/78002"><img src="https://royaltyclerk.com/maps/zip/78002.svg" alt="Map of ZIP code 78002, Texas, outlined, with 380 oil and gas wells inside it and 1,554 within 3 miles of its edge as dots, and 12 drilling locations permitted in two years." width="1000" height="980" 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/78002">Oil and gas wells in ZIP code 78002, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>In numbers
Wells in 78002 and within 3 miles
| What | Inside 78002 | Within 3 miles |
|---|---|---|
| Producing wells | 336 | 1,027 |
| Not producing wells | 8 | 208 |
| Plugged wells | 36 | 319 |
| Drilling permits, last 24 months | 7 | 12 |
| All wells | 380 | 1,554 |
ZIP code 78002 covers 40 square miles of land and 0.5 of water: about 9.5 wells to the square mile.
Drilling locations
The newest drilling permits in and near 78002
| Issued | Lease and well | Where | Operator |
|---|---|---|---|
| 2026-05-27 | RALPH & SONS FARMS, INC 18vertical · API 42-325-34389 · permit 0915859Premier Minerals, Inc. | 0.6 mi outside29.25998, -98.80734 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
| 2026-05-27 | RALPH & SONS FARMS, INC 17vertical · API 42-325-34388 · permit 0915858Premier Minerals, Inc. | 0.7 mi outside29.25984, -98.80830 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
| 2026-05-27 | RALPH & SONS FARMS, INC 16vertical · API 42-325-34387 · permit 0915857Premier Minerals, Inc. | 0.8 mi outside29.25973, -98.80929 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
| 2026-05-15 | RALPH & SONS FARMS, INC 15vertical · API 42-325-34386 · permit 0915591Premier Minerals, Inc. | 0.8 mi outside29.25972, -98.81051 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
| 2026-02-19 | ERD UNIT 15vertical · API 42-029-38405 · permit 0913507JM Calk Operating, LLC | in 7800229.28002, -98.76536 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2026-02-19 | ERD UNIT 14vertical · API 42-029-38404 · permit 0913506JM Calk Operating, LLC | in 7800229.27933, -98.76476 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2026-02-18 | ERD UNIT 13vertical · API 42-029-38403 · permit 0913484JM Calk Operating, LLC | in 7800229.27850, -98.76482 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2026-02-13 | ERD UNIT 12vertical · API 42-029-38402 · permit 0913198JM Calk Operating, LLC | in 7800229.27782, -98.76537 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2025-12-15 | ERD UNIT 8vertical · API 42-029-38401 · permit 0912107JM Calk Operating, LLC | in 7800229.27974, -98.76662 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2025-12-15 | ERD UNIT 7vertical · API 42-029-38400 · permit 0912106JM Calk Operating, LLC | in 7800229.27906, -98.76717 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2025-12-15 | ERD UNIT 6vertical · API 42-029-38335 · permit 0912105JM Calk Operating, LLC | in 7800229.27847, -98.76790 on OpenStreetMap (opens in a new tab) | JM Calk Operating, LLC |
| 2025-07-15 | PIONEER 1vertical · API 42-325-34385 · permit 09092361859 Operating LLC | 1.0 mi outside29.25541, -98.81090 on OpenStreetMap (opens in a new tab) | 1859 Operating LLC |
| 2024-09-30 | RALPH & SONS FARMS, INC. 13vertical · API 42-325-34384 · permit 0902986Premier Minerals, Inc. | 0.5 mi outside29.26183, -98.80619 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
| 2024-09-30 | RALPH & SONS FARMS, INC. 12vertical · API 42-325-34383 · permit 0902985Premier Minerals, Inc. | 0.6 mi outside29.26082, -98.80663 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
| 2024-09-30 | RALPH & SONS FARMS, INC. 11vertical · API 42-325-34382 · permit 0902984Premier Minerals, Inc. | 0.7 mi outside29.25913, -98.80752 on OpenStreetMap (opens in a new tab) | Premier Minerals, Inc. |
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 78002
- 1Brown, Alicia 4in townProducing · API 42-029-32849 · Calk, Roger D. · inside 78002
- 2Brown, Alicia 20.1 mi SWProducing · API 42-029-32861 · Calk, Roger D. · inside 78002
- 3Brown, Alicia 10.2 mi SWProducing · API 42-029-32690 · Calk, Roger D. · inside 78002
- 4Brown, Alicia 30.2 mi SWProducing · API 42-029-32945 · Calk, Roger D. · inside 78002
- 5Massey, Marvin M. JR. 30.6 mi WProducing · API 42-029-31235 · Fuego Energy, LLC · inside 78002
- 6Massey, Marvin M. JR. 10.6 mi WProducing · API 42-029-31228 · Fuego Energy, LLC · inside 78002
Who runs them
Operators of the wells in 78002
- 1Calk, Roger D.54 wells50 on producing leases
- 2Calfas Oil, LLC46 wells46 on producing leases
- 3Haggard Operating Group/Oil36 wells36 on producing leases
- 4Drachen Oil Company35 wells35 on producing leases
- 5Red Chalk Resources LLC33 wells33 on producing leases
- 6Mojave Resources, LLC27 wells27 on producing leases
- 7Gonzalez, Eugene JR22 wells18 on producing leases
- 8Simco Oil, LLC15 wells15 on producing leases
Around it
Towns and ZIP codes around 78002
FAQ
Questions people ask
Are there oil or gas wells near 78002?
Yes. 380 oil and gas wells with a location on the state's map lie inside ZIP code 78002, 336 of them on producing leases, and 1,554 within 3 miles of its edge. The state issued 12 drilling permits with a well location within 3 miles in the last 24 months, the newest on May 27, 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 78002, 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 78002?
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 Bexar 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 78002?
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