WELL · 42-115-32204 · DISTRICT 8
Grissom #1
Dawson County · Deroen (Mississippian) field · Vertical
Grissom #1 (API 42-115-32204) is a well in Dawson County operated by Extex Operating Company, completed July 19, 1985.
The RRC has issued 2 drilling permits between 1985 and 2023, permitted to 10,650 ft.
It was permitted by Cholla Petroleum, Inc. and has since transferred to Extex Operating Company on the wellbore schedule.
Completion filings report 3 formation tops, including Mississippian, Spraberry, Pennsylvanian.
Its 2 leases have reported 79.9K barrels of oil and 118K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cholla Petroleum, Inc.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Nov 4, 2025 · 117 permits on file · (713) 870-4327
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Extex Operating Company |
| Production reports | Cholla Petroleum, Inc.through Jan 2023 |
| Latest permit | Cholla Petroleum, Inc.Apr 28, 2023 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,650
- total depth, ft
- 2
- permits on file
- Apr 28, 2023
- last permit issued
- Jul 19, 1985
- completed
- 79.9K
- cumulative oil, bbl
- 118K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 19, 1985
- Shut in
- —
- Plugged
- —
Surface location
32.712456, -101.758106
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Dawson County.
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Grissom O-11-65438 | Deroen (Mississippian) | Extex Operating Company | 1 | 79.9K | 118K | Jan 1993 – Jul 2026 |
| Grissom O-11-71297 | Spraberry, W. (Deep, Spraberry) | Extex Operating Company | 1 | 0 | 0 | Apr 2023 – Jul 2026 |
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.
- 1Eland Energy, Inc.Jan 1993 → Aug 2013
- 2Three Rivers Operating Co II LLCSep 2013 → Mar 2017
- 3Cholla Petroleum, Inc.Apr 2017 → Jan 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 890080-99 | Recompletion | Cholla Petroleum, Inc. | Apr 25, 2023 | Apr 28, 2023 | Mar 14, 2023 | 10,650 |
| 273958-99 | Drill | Imc Exploraton Co. | Feb 14, 1985 | May 2, 1985 | May 17, 1985 | 10,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-65438 | — | — | — | — |
| — | — O-11-71297 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,908 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Mississippian | 6,654 | -3,746 |
| Spraberry | 6,654 | -3,746 |
| PennsylvanianPENN | 8,565 | -5,657 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,651 | 7,671 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 396 | 17 | 420 S |
| 9.625 | 3,707 | 12.25 | 750 S |
| 5.5 | 10,650 | 7.875 | 600 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 | May 24, 2023 | May 1, 2023 | — |
| 00 | Aug 27, 1985 | — | — |
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 42-115-32204 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-115-32204 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Jeter 3442-115-33408
2.1 KM · SDX Resources, Inc. · Section with this well →
| U. Spraberry | 6,730 | -3,809 |
| Wolfcamp | 8,120 | -5,199 |
| Pennsylvanian | 8,460 | -5,539 |
Jeter 2742-115-33770
2.9 KM · SDX Resources, Inc. · Section with this well →
| Yates | 2,090 | 834 |
| San Andres | 3,705 | -781 |
| Spraberry | 6,806 | -3,882 |
| Dean | 8,098 | -5,174 |
| Wolfcamp | 8,200 | -5,276 |
| Canyon | 8,565 | -5,641 |
| Pennsylvanian | 8,592 | -5,668 |
| Mississippian | 10,416 | -7,492 |
10 TOPS · FIRST 8
JO-Mill West Unit42-115-33783
5.2 KM · Estancia Oil & Gas, LLC · Section with this well →
| San Andres | 3,500 | -605 |
| Spraberry | 6,570 | -3,675 |
| Pennsylvanian | — | |
| Devonian | — | |
| Dean | — | |
| Canyon | — | |
| Yates | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
Heald 4742-115-33757
5.3 KM · Petroplex Energy Inc. · Section with this well →
| Jo Mill | 7,532 | -4,641 |
| Pennsylvanian | — | |
| Canyon | — | |
| Dean | — | |
| Devonian | — | |
| Mississippian | — | |
| San Andres | — | |
| Spraberry | — |
10 TOPS · FIRST 8
JO-Mill West Unit42-115-33782
5.7 KM · Estancia Oil & Gas, LLC · Section with this well →
| San Andres | 3,500 | -610 |
| Spraberry | 6,570 | -3,680 |
| Yates | — | |
| Canyon | — | |
| Dean | — | |
| Devonian | — | |
| Mississippian | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Hawkins42-115-33892
6.3 KM · Halvey Energy, LLC · Section with this well →
| Yates | 2,510 | 429 |
| San Andres | 4,170 | -1,231 |
| Spraberry | 6,752 | -3,813 |
| Silurian (undifferentiated) | — | |
| Dean | — | |
| Wolfcamp | — | |
| Canyon | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Canon Ranch Unit42-033-32285
7.3 KM · Relentless Permian Operating LLC · Section with this well →
| Grayburg | 3,050 | -279 |
| San Andres | 3,268 | -497 |
| Spraberry | 7,230 | -4,459 |
Canon Ranch Unit42-033-32309
7.7 KM · Relentless Permian Operating LLC · Section with this well →
| Santa Rosa | 671 | 1,962 |
| Rustler | 1,377 | 1,256 |
| Yates | 1,940 | 693 |
| San Andres | 3,268 | -635 |
| Clear Fork | 4,372 | -1,739 |
| Leonard | 6,027 | -3,394 |
| Spraberry | 6,252 | -3,619 |
| Cisco | — |
10 TOPS · FIRST 8
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/11532204, documented in the API reference.