WELL · 42-389-33039 · DISTRICT 8
Big Chief #4715H
Reeves County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
Big Chief #4715H (API 42-389-33039) is a horizontal well in Reeves County operated by Scout Energy Management LLC, completed December 4, 2011 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 2011 and 2013, permitted to 10,375 ft.
It was permitted by Cog Operating LLC and has since transferred to Scout Energy Management LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Delaware, Bone Spring, Wolf Camp, Wolfcamp.
Its 2 leases have reported 8.82M barrels of oil and 15.6M mcf of gas since June 2011, last reporting in July 2026. The leases carry 36 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by COG Operating LLC; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 22, 2025
- Permits on file
- 483
- Phone
- (972) 277-1397
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | Scout Energy Management LLCthrough Apr 2026 |
| Latest permit | COG Operating LLCApr 17, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,375
- total depth, ft
- 3
- permits on file
- Apr 17, 2013
- last permit issued
- Dec 4, 2011
- completed
- 8.82M
- cumulative oil, bbl
- 15.6M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 4, 2011
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 36 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 – Jul 2026 |
| Big Chief O-10-41788 | Wolfbone (Trend Area) | COG Operating LLC | 2 | 8.53K | 5.72K | Jun 2011 – Sep 2014 |
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 LLCOct 2011 → Feb 2025
- 2Scout Energy Management LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 760143-98 | Recompletion | COG Operating LLC | Jan 29, 2014 | Apr 17, 2013 | Oct 24, 2011 | 11,000 |
| 760143-99 | Recompletion | COG Operating LLC | Apr 5, 2013 | Apr 17, 2013 | — | 12,000 |
| 725897-99 | Drill | COG Operating LLC | Oct 7, 2011 | Oct 11, 2011 | Oct 23, 2011 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 4, 2011 | Big Chief O-10-44043 | Hoefs T-K (Wolfcamp) | Scout Energy Management LLC | Producing | 10,375 |
| Dec 23, 2011 | Big Chief O-10-41788 | Wolfbone (Trend Area) | COG Operating LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,932 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 5,231 | -2,299 |
| Bone Spring | 7,961 | -5,029 |
| Wolf Camp | 10,134 | -7,202 |
| Wolfcamp | 10,134 | -7,202 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,733 | 14,445 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,516 | 17.5 | 1,150 S |
| 13.375 | 1,519 | 17.5 | 1,150 S |
| 9.625 | 5,015 | 12.25 | 1,450 S |
| 9.625 | 5,017 | 12.25 | 1,450 S |
| 7 | 11,107 | 8.75 | 1,400 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 | Jun 15, 2026 | Apr 10, 2026 | — |
| 00 | Aug 15, 2014 | Jun 30, 2014 | — |
| 00 | Apr 11, 2013 | Mar 13, 2012 | Yes |
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 42-389-33039 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-33039 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
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/38933039, documented in the API reference.