WELL · 42-391-30262 · DISTRICT 2
Obrien J. J. -C- #C 4
Refugio County · Greta Deep (5660) field · Vertical
Obrien J. J. -C- #C 4 (API 42-391-30262) is a well in Refugio County operated by Chilton Energy, completed February 28, 1979.
The RRC has issued 2 drilling permits between 1990 and 2002, permitted to 6,500 ft.
It was permitted by Acock/Anaqua Operating CO., LC and has since transferred to Chilton Energy on the wellbore schedule.
Completion filings report 4 formation tops, including Catahoula, Catahula, Greta, 6200.
Its 3 leases have reported 17.9K barrels of oil and 318K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Acock/Anaqua Operating Co., LC; the EWA schedule now lists a different operator.
Corpus Christ, TX · P-5 Y, filed Aug 4, 2006 · 81 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chilton Energy |
| Production reports | Greta Operating Company LLCthrough Apr 2026 |
| Latest permit | Acock/Anaqua Operating Co., LCJun 14, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 2
- permits on file
- Jun 14, 2002
- last permit issued
- Feb 28, 1979
- completed
- 17.9K
- cumulative oil, bbl
- 318K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 28, 1979
- Shut in
- —
- Plugged
- —
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 3 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 |
|---|---|---|---|---|---|---|
| O'Brien, J. J. O-2-12233 | Greta (5800) | Greta Operating Company LLC | 1 | 17.9K | 17.5K | Oct 2021 – Jul 2026 |
| O'Brien, J. J. G-2-190694 | Greta (5800) | Greta Operating Company LLC | 1 | 0 | 299K | Jun 2002 – Oct 2021 |
| O'Brien, J. J. "C" (P) G-2-134135 | Greta (L- 8) | Acock/Anaqua Operating Co., LC | 1 | 0 | 1.2K | Jan 1993 – Jun 2002 |
Oil, barrels lease total
Last 12 months 4,347 · prior 12 4,152(+5%)
Gas, mcf lease total
Last 12 months 5,165 · prior 12 4,774(+8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chilton EnergyOct 2000 → Jun 2001
- 2Acock/Anaqua Operating Co., LCJun 2002 → Apr 2004
- 3Acock/Anaqua Operating Co., LPMay 2004 → Nov 2020
- 4Greta Operating Company LLCDec 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 520815-99 | Recompletion | Acock/Anaqua Operating Co., LC | Jun 10, 2002 | Jun 14, 2002 | Jun 15, 2002 | 6,000 |
| 371326-99 | Recompletion | Chilton Energy | Mar 23, 1990 | Mar 27, 1990 | — | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-134135 | — | — | — | — |
| — | — G-2-190694 | — | — | — | — |
| — | — O-2-12233 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 67 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,174 | 2,180 | Perforated |
| 4,352 | 5,947 | Perforated |
| 5,702 | 5,705 | Perforated |
| 5,786 | 5,791 | Perforated |
| 5,786 | 5,791 | Open hole |
| 5,798 | 5,801 | Perforated |
| 5,798 | 5,801 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 368 | 20 | 475 S |
| 10.75 | 1,223 | 15 | 550 S |
| 2.375 | 5,665 | — | — |
| 7 | 6,083 | 8.875 | 1,200 S |
| 7 | 6,083 | 9.875 | 1,200 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 | Nov 17, 2021 | Oct 28, 2021 | — |
| 00 | Jan 28, 2004 | Jun 18, 2002 | Yes |
| 00 | Oct 3, 2002 | — | — |
| 00 | Jun 21, 1990 | Mar 27, 1990 | Yes |
| 00 | Jun 13, 1990 | — | — |
| 00 | Jan 12, 1984 | Jul 9, 1973 | — |
| 00 | Jan 12, 1984 | Jun 21, 1973 | — |
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 42-391-30262 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-30262 → 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/39130262, documented in the API reference.