TEXAS · WELLS · REEVES COUNTY · API 42-389-33844 · DISTRICT 7B
Big Chief #7501SW
Reeves County · Hoefs T-K (Wolfcamp) field · Injection · Horizontal
Big Chief #7501SW (API 42-389-33844) is a horizontal well in Reeves County operated by Waterbridge Texas Operating LLC, completed July 1, 2020 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued June 28, 2013, permitted to 7,078 ft.
It was permitted by Cog Operating LLC and has since transferred to Waterbridge Texas Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Delaware, Bone Spring, Wolfcamp.
Its 2 leases have reported 8.81M barrels of oil and 15.6M mcf of gas since July 2012, last reporting volume in April 2026. The leases carry 35 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 5.19M barrels injected in the 12 months reported through April 2026.
Operator of record
Waterbridge Texas Operating LLC
Permitted by COG Operating LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 16, 2026
- Permits on file
- 20
- Phone
- (713) 230-8864
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Waterbridge Texas Operating LLC |
| Production reports | Scout Energy Management LLCthrough Apr 2026 |
| Latest permit | COG Operating LLCJun 28, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,078
- total depth, ft
- 3
- permits on file
- Jun 28, 2013
- last permit issued
- Jul 1, 2020
- completed
- 8.81M
- cumulative oil, bbl
- 15.6M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2012 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 1, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 35 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Big Chief O-10-44043 | Hoefs T-K (Wolfcamp) | Scout Energy Management LLC | 34 | 8.81M | 15.6M | Jul 2012 – Apr 2026 |
| Big Chief O-10-51159 | Hoefs T-K (Wolfcamp) | Waterbridge Texas Operating LLC | 1 | 0 | 0 | Dec 2018 – — |
Oil, barrels lease total
Last 12 months 428,721 · prior 12 511,185(-16%)
Gas, mcf lease total
Last 12 months 1,497,233 · prior 12 1,075,942(+39%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCJul 2012 → Feb 2025
- 2Scout Energy Management LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 765426-97 | Drill | COG Operating LLC | Feb 17, 2014 | Jun 28, 2013 | Dec 19, 2013 | 8,500 |
| 765426-98 | Drill | COG Operating LLC | Sep 18, 2013 | Jun 28, 2013 | — | 12,000 |
| 765426-99 | Drill | COG Operating LLC | Jun 25, 2013 | Jun 28, 2013 | Dec 19, 2013 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 1, 2020 | Big Chief O-10-51159 | Hoefs T-K (Wolfcamp) | Waterbridge Texas Operating LLC | Injection | 7,078 |
| Feb 2, 2014 | Big Chief O-10-44043 | Hoefs T-K (Wolfcamp) | Scout Energy Management LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,879 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 5,205 | -2,326 |
| Bone Spring | 8,026 | -5,147 |
| Wolfcamp | 10,221 | -7,342 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,212 | 7,078 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,636 | 17.5 | 1,785 S |
| 9.625 | 5,212 | 12.25 | 645 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 9, 2021 | Mar 8, 2021 | — |
| 00 | Aug 17, 2020 | Jul 23, 2020 | — |
| 00 | Mar 16, 2019 | Jun 15, 2015 | — |
| 00 | Aug 11, 2015 | Jun 15, 2015 | — |
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 42-389-33844 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-33844 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 5.19M
- bbl, last 12 reported months
- 38.8M
- bbl, all reported
- Apr 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000109711 | W-14 Disposal | Active | 20,000 | 2,600 | 5,211–8,000 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 5,188,648 · prior 12 2,963,774(+75%)
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/38933844, documented in the API reference.