WELL · 42-383-31599 · DISTRICT 7
Calvin #1
Reagan County · Spraberry (Trend Area) field · Vertical
Calvin #1 (API 42-383-31599) is a plugged well in Reagan County, plugged January 19, 2024, last operated by Endeavor Energy Resources L.P..
The RRC has issued one drilling permit, issued March 18, 1980, permitted to 8,200 ft.
It was permitted by Coquina Oil Corporation and has since transferred to Endeavor Energy Resources L.P. on the wellbore schedule.
Its 2 leases have reported 9.77K barrels of oil and 116K mcf of gas since January 1993, last reporting in February 2024. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Endeavor Energy Resources L.P.
Permitted by Coquina Oil Corporation; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Apr 4, 2026 · 6,190 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Endeavor Energy Resources L.P. |
| Production reports | Endeavor Energy Resources L.P.through Nov 2019 |
| Latest permit | Coquina Oil CorporationMar 18, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,200
- total depth, ft
- 1
- permits on file
- Mar 18, 1980
- last permit issued
- Jul 10, 1980
- completed
- 9.77K
- cumulative oil, bbl
- 116K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2024
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 10, 1980
- Shut in
- —
- Plugged
- Jan 19, 2024
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Calvin O-9-14227 | Spraberry (Trend Area) | Endeavor Energy Resources L.P. | 1 | 7.09K | 85.7K | Nov 1995 – Feb 2024 |
| Calvin O-9-8397 | Calvin (Dean) | Stephens, Autry C. | 2 | 2.68K | 30.3K | Jan 1993 – Feb 1996 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Stephens, Autry C.Jan 1993 → Aug 2000
- 2Endeavor Energy Resources L.P.Sep 2000 → Aug 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 75519-99 | Drill | Coquina Oil Corporation | Mar 18, 1980 | Mar 18, 1980 | Apr 12, 1980 | 8,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-8397 | — | — | — | — |
| — | — O-9-14227 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,345 | 7,370 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 708 | 11 | 350 S |
| 2.375 | 6,558 | — | — |
| 4.5 | 7,510 | 7.875 | 900 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 | Dec 21, 1995 | Jul 17, 1980 | — |
| 00 | Jan 12, 1984 | Jul 17, 1980 | — |
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 42-383-31599 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-31599 → 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/38331599, documented in the API reference.