WELL · 42-473-30777 · DISTRICT 3
Sampson Heirs #11
Waller County · Brookshire field · Injection · Vertical
Sampson Heirs #11 (API 42-473-30777) is a well in Waller County operated by Nupower Energy LLC, completed September 16, 2014 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued September 18, 2002, permitted to 4,000 ft.
It was permitted by H-M Resource Management, Inc. and has since transferred to Nupower Energy LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Miocene (undifferentiated), Catahoula, Caprock, Frio.
Its lease has reported 745K barrels of oil since May 1999, last reporting in July 2026. The lease carries 12 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 420K barrels injected in the 12 months reported through April 2026.
Operator of record
Permitted by H-M Resource Management, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed May 4, 2026 · (281) 682-3304
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Nupower Energy LLC |
| Production reports | Nupower Energy, LLCthrough Apr 2026 |
| Latest permit | H-M Resource Management, Inc.Sep 18, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,000
- total depth, ft
- 1
- permits on file
- Sep 18, 2002
- last permit issued
- Sep 16, 2014
- completed
- 745K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 1999 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 16, 2014
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 lease this well is completed on; they carry 12 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sampson Heirs O-3-23665 | Brookshire | Nupower Energy, LLC | 12 | 745K | 0 | May 1999 – Jul 2026 |
Oil, barrels lease total
Last 12 months 766 · prior 12 679(+13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1H-M Resource Management, Inc.May 1999 → Jun 2022
- 2Kem Energy, Inc.Jul 2022 → Sep 2023
- 3Nupower Energy, LLCOct 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 523817-99 | Drill | H-M Resource Management, Inc. | Sep 18, 2002 | Sep 18, 2002 | Oct 5, 2002 | 4,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-23665 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 115 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE | 1 | 114 |
| CatahoulaCATAHOULA SAND - DISPOSAL | 2,250 | -2,135 |
| Miocene (undifferentiated)MIOCENE - DISPOSAL | 2,610 | -2,495 |
| CaprockCAPROCK - DISPOSAL | 3,278 | -3,163 |
| FrioFRIO - DISPOSAL | — | — |
| Miocene (undifferentiated)MIOCENE | — | — |
| WilcoxWILCOX - DISPOSAL | — | — |
| YeguaYEGUA - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,770 | 1,778 | Perforated |
| 3,112 | 3,500 | Perforated |
| 3,278 | 3,500 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 398 | 12.25 | 210 S |
| 8.625 | 402 | 12.25 | 105 S |
| 5.5 | 3,276 | 7.875 | 498 S |
| 5.5 | 3,281 | 7.875 | 498 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 | Aug 5, 2022 | Apr 21, 2022 | — |
| 00 | Aug 3, 2022 | Apr 5, 2022 | — |
| 00 | Oct 14, 2003 | Aug 20, 2003 | — |
| 00 | Mar 13, 2003 | Jan 27, 2003 | Yes |
| 00 | Feb 21, 2003 | — | — |
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 42-473-30777 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-473-30777 → 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
- 420K
- bbl, last 12 reported months
- 11.2M
- bbl, all reported
- Apr 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000093171 | H-1 Injection | Active | 5,000 | 780 | 2,936–3,500 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 419,750 · prior 12 657,000(-36%)
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/47330777, documented in the API reference.