TEXAS · WELLS · REEVES COUNTY · THUNDERBOLT C21-9 UNIT LEASE · API 42-389-34794 · DISTRICT 7B
Thunderbolt C21-9 Unit #1H
Reeves County · Phantom (Wolfcamp) field · Producing · Horizontal
Thunderbolt C21-9 Unit #1H (API 42-389-34794) is a horizontal well in Reeves County operated by Coterra Energy Operating CO., completed July 17, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 3, 2015, permitted to 10,249 ft.
It was permitted by Cimarex Energy CO. and has since transferred to Coterra Energy Operating CO. on the wellbore schedule.
Completion filings report 8 formation tops, including Permian (undifferentiated), Castile, Delaware, Bell Canyon.
Its lease has reported 551K barrels of oil and 2.92M mcf of gas since July 2015, last reporting in July 2026.
Operator of record
Permitted by Cimarex Energy Co.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 20, 2026
- Permits on file
- 184
- Phone
- (432) 571-7800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Coterra Energy Operating Co. |
| Production reports | Coterra Energy Operating Co.through Apr 2026 |
| Latest permit | Cimarex Energy Co.Mar 3, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,249
- total depth, ft
- 1
- permits on file
- Mar 3, 2015
- last permit issued
- Jul 17, 2015
- completed
- 551K
- cumulative oil, bbl
- 2.92M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2015 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 17, 2015
- 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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Thunderbolt C21-9 Unit O-10-46765 | Phantom (Wolfcamp) | Coterra Energy Operating Co. | 1 | 551K | 2.92M | Jul 2015 – Jul 2026 |
Gas, mcf lease total
Last 12 months 141,518 · prior 12 148,118(-4%)
Oil, barrels lease total
Last 12 months 22,444 · prior 12 21,736(+3%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cimarex Energy Co.Jul 2015 → Oct 2025
- 2Coterra Energy Operating Co.Nov 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 804101-99 | Drill | Cimarex Energy Co. | Feb 24, 2015 | Mar 3, 2015 | May 11, 2015 | 11,340 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 17, 2015 | Thunderbolt C21-9 Unit O-10-46765 | Phantom (Wolfcamp) | Coterra Energy Operating Co. | Producing | 10,249 |
Formation tops
As filed on W-2/G-1. Subsea from 3,062 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Permian (undifferentiated)PERMIAN | 200 | 2,862 |
| CastileCASTILLE | 1,850 | 1,212 |
| Delaware | 3,380 | -318 |
| DelawareDELAWARE CONSOLIDATED GAS | 3,380 | -318 |
| DelawareFORD-DELAWARE | 3,380 | -318 |
| Bell Canyon | 3,410 | -348 |
| Cherry Canyon | 4,370 | -1,308 |
| Bone SpringBONE SPRINGS | 6,940 | -3,878 |
| Wolfcamp | 10,085 | -7,023 |
| Pennsylvanian | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,542 | 18,065 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,380 | 12.25 | 1,632 S |
| 7 | 10,408 | 8.75 | 1,063 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 | Mar 6, 2017 | Feb 24, 2017 | — |
| 00 | Sep 16, 2015 | Aug 19, 2015 | 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 42-389-34794 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-34794 → 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/38934794, documented in the API reference.