Markham · Matagorda County, Texas
Oil and gas wells in and near ZIP code 77456
- 40wells inside the ZIP
- 175within 3 miles of it
- 3drilling locations in two years
- 40square miles of land
The ZIP code and 3 miles around it
Wells and drilling locations in and around 77456
- Drilling locations3Permits issued in the last two years
- Producing wells88On a lease reporting production now
- Not producing51Shut in, inactive or no lease on record
- Plugged36The state's wellbore record says plugged
The solid line is ZIP code 77456 as the US Census Bureau draws it; the dashed line is 3 miles out. The counts are for everything inside the dashed line: 40 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/77456"><img src="https://royaltyclerk.com/maps/zip/77456.svg" alt="Map of ZIP code 77456, Texas, outlined, with 40 oil and gas wells inside it and 175 within 3 miles of its edge as dots, and 3 drilling locations permitted in two years." width="1000" height="975" 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/77456">Oil and gas wells in ZIP code 77456, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>In numbers
Wells in 77456 and within 3 miles
| What | Inside 77456 | Within 3 miles |
|---|---|---|
| Producing wells | 14 | 88 |
| Not producing wells | 13 | 51 |
| Plugged wells | 13 | 36 |
| Drilling permits, last 24 months | 0 | 3 |
| All wells | 40 | 175 |
ZIP code 77456 covers 40 square miles of land and 0.2 of water: about 1.0 wells to the square mile.
Drilling locations
The newest drilling permits in and near 77456
| Issued | Lease and well | Where | Operator |
|---|---|---|---|
| 2026-03-09 | SMITH, LEWIS EDWIN ET AL 4vertical · API 42-321-32464 · permit 0913910Underground Services Markham,llc | 0.6 mi outside28.98646, -96.14548 on OpenStreetMap (opens in a new tab) | Underground Services Markham,llc |
| 2025-10-30 | H. SMITH 1vertical · API 42-321-32463 · permit 0911471Underground Services Markham,llc | 0.9 mi outside28.99449, -96.15014 on OpenStreetMap (opens in a new tab) | Underground Services Markham,llc |
| 2025-09-23 | ANDERSON 1vertical · API 42-321-32361 · permit 0910613Magnum Producing, LP | 3.0 mi outside28.96532, -96.00027 on OpenStreetMap (opens in a new tab) | Magnum Producing, LP |
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 77456
- 1Smith, Howard, Fee 152.7 mi NEProducing · API 42-321-01231 · Qri Industries, Inc.
- 2Smith, Howard, Fee 16W2.7 mi NEProducing · API 42-321-01253 · Qri Industries, Inc.
- 3Smith, Howard, Fee 192.7 mi NEProducing · API 42-321-80655 · Qri Industries, Inc.
- 4Smith, Howard, Fee 182.8 mi NEProducing · API 42-321-80654 · Qri Industries, Inc.
- 5Smith, Howard, Fee 282.8 mi NEPlugged · API 42-321-01226 · Qri Industries, Inc.
- 6Smith, Howard, Fee 32.8 mi NEPlugged · API 42-321-01202 · Qri Industries, Inc.
Who runs them
Operators of the wells in 77456
- 1Goldking Minerals Mgmt, L.L.C.37 wells17 on producing leases
- 2Kebo Oil & Gas, Inc.2 wellsnone on a producing lease
- 3Orx Resources, L.L.C.1 well1 on producing leases
Around it
Towns and ZIP codes around 77456
FAQ
Questions people ask
Are there oil or gas wells near 77456?
Yes. 40 oil and gas wells with a location on the state's map lie inside ZIP code 77456, 14 of them on producing leases, and 175 within 3 miles of its edge. The state issued 3 drilling permits with a well location within 3 miles in the last 24 months, the newest on March 9, 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 77456, 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 77456?
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 Matagorda 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 77456?
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