TEXAS · WELLS · ZAVALA COUNTY · GRISSOM LEASE · API 42-507-32907 · DISTRICT 01
Grissom #1
Zavala County · Pearsall (Austin Chalk) field · Producing · Horizontal
Grissom #1 (API 42-507-32907) is a horizontal well in Zavala County operated by Cml Exploration LLC, completed July 8, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 25, 2012, permitted to 6,109 ft.
Completion filings report 3 formation tops, including Olmos, Anacacho, Austin Chalk.
Its lease has reported 40.4K barrels of oil since July 2012, last reporting in July 2026.
Operator of record
- Based in
- Austin, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 20, 2025
- Permits on file
- 514
- Phone
- (512) 328-8085
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | CML Exploration LLC |
| Production reports | CML Exploration, LLCthrough Apr 2026 |
| Latest permit | CML Exploration, LLCMay 25, 2012 |
- 6,109
- total depth, ft
- 2
- permits on file
- May 25, 2012
- last permit issued
- Jul 8, 2012
- completed
- 40.4K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 8, 2012
- 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 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 |
|---|---|---|---|---|---|---|
| Grissom O-1-16955 | Pearsall (Austin Chalk) | CML Exploration, LLC | 1 | 40.4K | 0 | Jul 2012 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,066 · prior 12 3,073(-33%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1CML Exploration, LLCJul 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 741160-98 | Drill | CML Exploration, LLC | Jul 18, 2012 | May 25, 2012 | May 27, 2012 | 7,000 |
| 741160-99 | Drill | CML Exploration, LLC | May 21, 2012 | May 25, 2012 | May 27, 2012 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 8, 2012 | Grissom O-1-16955 | Pearsall (Austin Chalk) | CML Exploration LLC | Producing | 6,109 |
Formation tops
As filed on W-2/G-1. Subsea from 554 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 3,266 | -2,712 |
| Anacacho | 4,706 | -4,152 |
| Austin Chalk | 5,181 | -4,627 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,100 | 8,383 | Open hole |
| 5,100 | 10,601 | Open hole |
| 5,100 | 10,713 | Open hole |
| 5,100 | 10,832 | Open hole |
| 5,100 | 11,002 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,710 | 12.25 | 670 S |
| 7 | 5,100 | 8.75 | 697 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 | Aug 30, 2013 | Aug 9, 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 42-507-32907 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-32907 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/50732907, documented in the API reference.