TEXAS · WELLS · DIMMIT COUNTY · OPA UNIT LEASE · API 42-127-33651 · DISTRICT 01
Opa Unit #1
Dimmit County · Pearsall (Austin Chalk) field · Horizontal
Opa Unit #1 (API 42-127-33651) is a plugged horizontal well in Dimmit County, plugged October 14, 2012, last operated by Cml Exploration LLC.
The RRC has issued one drilling permit (amended once), issued January 14, 2010, permitted to 6,800 ft.
Completion filings report 4 formation tops, including Olmos, Anacacho, Austin Chalk, Eagle Ford.
Its lease has reported 26.7K barrels of oil since April 2010, with no volume in the three years through April 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 Nov 2011 |
| Latest permit | CML Exploration, LLCJan 14, 2010 |
- 6,800
- total depth, ft
- 2
- permits on file
- Jan 14, 2010
- last permit issued
- Apr 9, 2010
- completed
- 26.7K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2010 THROUGH Nov 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 9, 2010
- Shut in
- —
- Plugged
- Oct 14, 2012
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 |
|---|---|---|---|---|---|---|
| Opa Unit O-1-15185 | Pearsall (Austin Chalk) | CML Exploration, LLC | 1 | 26.7K | 0 | Apr 2010 – Nov 2011 |
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.
- 1CML Exploration, LLCApr 2010 → Nov 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 689663-98 | Drill | CML Exploration, LLC | Apr 6, 2010 | Jan 14, 2010 | Feb 27, 2010 | 6,800 |
| 689663-99 | Drill | CML Exploration, LLC | Jan 12, 2010 | Jan 14, 2010 | Feb 28, 2010 | 6,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 9, 2010 | Opa Unit O-1-15185 | Pearsall (Austin Chalk) | CML Exploration LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 529 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| OlmosOLMOS SAND | 3,340 | -2,811 |
| Anacacho | 4,845 | -4,316 |
| Austin Chalk | 5,341 | -4,812 |
| Eagle FordEAGLEFORD (PENETRATION POINT) | 6,028 | -5,499 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,353 | 8,805 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,509 | 12.25 | 591 S |
| 7 | 5,208 | 8.75 | 702 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 28, 2010 | Apr 23, 2010 | Yes |
| 00 | Jul 19, 2010 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 5, 2013. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Olmos, Anacacho | TIFF | 1,510 to 5,212 | Mar 5, 2013run Mar 8, 2010 | 4.22 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-127-33651 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-33651 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/12733651, documented in the API reference.