WELL · 42-321-31594 · DISTRICT 3
Hiltpold #4
Matagorda County · Markham field · Vertical
Hiltpold #4 (API 42-321-31594) is a well in Matagorda County operated by Underground Services Markham LLC, completed April 7, 2005.
The RRC has issued one drilling permit, issued August 9, 1989, permitted to 6,600 ft.
It was permitted by Texas Brine Corporation and has since transferred to Underground Services Markham LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Caprock, Salt Dome, Top Salt, Anahuac.
No lease production has been reported under this well’s leases.
It holds an active disposal or injection permit, with 4.8K barrels injected in the 12 months reported through January 1993.
Operator of record
Underground Services Markham LLC
Permitted by Texas Brine Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jan 5, 2026 · 8 permits on file · (713) 877-2700
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Underground Services Markham LLC |
| Production reports | none |
| Latest permit | Texas Brine CorporationAug 9, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,600
- total depth, ft
- 1
- permits on file
- Aug 9, 1989
- last permit issued
- Apr 7, 2005
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 7, 2005
- Shut in
- —
- Plugged
- —
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hiltpold O-3-11292 | Markham | Underground Services Markham,llc | 10 | 0 | 0 | Jan 1993 – Jul 2026 |
| Hiltpold - KM O-3-27926 | Markham | Kinder Morgan Texas Pipeline LLC | 7 | 0 | 0 | Oct 2021 – Jul 2026 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 362377-99 | Drill | Texas Brine Corporation | Aug 4, 1989 | Aug 9, 1989 | Nov 1, 1989 | 6,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-11292 | — | — | — | — |
| — | — O-3-27926 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 32 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,418 | 4,823 | Open hole |
| 3,418 | 5,444 | Perforated |
| 3,418 | 6,568 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 30 | 809 | 36 | 1,910 S |
| 24 | 2,387 | 32 | 3,686 S |
| 20 | 2,805 | 26 | 576 S |
| 13.375 | 3,418 | 17.5 | 3,965 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 11, 2023 | Jun 27, 2023 | — |
| 00 | Nov 13, 2021 | May 27, 2008 | — |
| 00 | Jun 5, 2008 | May 27, 2008 | — |
| 00 | Aug 8, 1990 | May 4, 1990 | — |
| 00 | Aug 1, 1990 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-321-31594 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-31594 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 4.8K
- bbl, last 12 reported months
- 58.3M
- bbl, all reported
- Jan 1993
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000070121 | UIC Permit | Active | 0 | 0 | 3,475–4,590 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 4,801 · prior 12 2,152(+123%)
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/32131594, documented in the API reference.