TEXAS · WELLS · COKE COUNTY · I. A. B. UNIT LEASE · API 42-081-31266 · DISTRICT 6E
I. A. B. Unit #521
Coke County · I. A. B. (Menielle Penn.) field · Shut In · Vertical
I. A. B. Unit #521 (API 42-081-31266) is a well in Coke County operated by Citation Oil & Gas Corp., completed February 13, 2009 and listed as shut in on the RRC schedule, shut in May 1, 2025.
The RRC has issued one drilling permit, issued May 17, 1984, permitted to 5,900 ft.
It was permitted by Exxon Corp. and has since transferred to Citation Oil & Gas Corp. on the wellbore schedule.
Completion filings report 5 formation tops, including Flippen Lime, Cisco, Menielle Penn, Menielle Penn..
Its lease has reported 3.61M barrels of oil and 21.2M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 89 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Corp.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 27, 2026
- Permits on file
- 866
- Phone
- (281) 891-1000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Citation Oil & Gas Corp. |
| Production reports | Citation Oil & Gas Corp.through Apr 2026 |
| Latest permit | Exxon Corp.May 17, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,900
- total depth, ft
- 1
- permits on file
- May 17, 1984
- last permit issued
- Feb 13, 2009
- completed
- 3.61M
- cumulative oil, bbl
- 21.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 13, 2009
- Shut in
- May 1, 2025
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; they carry 89 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| I. A. B. Unit O-9-3910 | I. A. B. (Menielle Penn.) | Citation Oil & Gas Corp. | 89 | 3.61M | 21.2M | Jan 1993 – Apr 2026 |
Gas, mcf lease total
Last 12 months 81,755 · prior 12 82,649(-1%)
Oil, barrels lease total
Last 12 months 2,166 · prior 12 2,915(-26%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Dec 1993
- 2Oryx Energy CompanyJan 1994 → Mar 1999
- 3Kerr-McGee CorporationApr 1999 → Sep 1999
- 4Kerr-McGee Oil & Gas Onshore LLCOct 1999 → Nov 2002
- 5Aethon I LPDec 2002 → Nov 2007
- 6Sheridan Production Company, LLCDec 2007 → Mar 2020
- 7FDL Operating, LLCApr 2020 → Apr 2022
- 8Citation Oil & Gas Corp.May 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 239125-99 | Drill | Exxon Corp. | May 3, 1984 | May 17, 1984 | Jun 27, 1984 | 5,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 13, 2009 | I. A. B. Unit O-9-3910 | I. A. B. (Menielle Penn.) | Citation Oil & Gas Corp. | Shut In · shut in May 1, 2025 | 5,900 |
Formation tops
As filed on W-2/G-1. Subsea from 1,946 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Flippen Lime | 4,212 | -2,266 |
| Cisco | 4,222 | -2,276 |
| Menielle Penn | 5,216 | -3,270 |
| Menielle Penn. | 5,216 | -3,270 |
| Harris Sand | 5,274 | -3,328 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,509 | 5,549 | Perforated |
| 5,509 | 5,562 | Perforated |
| 5,509 | 5,700 | Perforated |
| 5,652 | 5,790 | Perforated |
| 5,860 | 5,865 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 370 | 12.25 | 300 S |
| 5.5 | 5,895 | 7.875 | 910 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 | May 14, 2009 | Apr 15, 2009 | — |
| 00 | Oct 15, 1996 | Oct 4, 1996 | — |
| 00 | Oct 5, 1995 | Aug 9, 1995 | — |
| 00 | May 8, 1990 | Apr 23, 1990 | — |
| 00 | Aug 21, 1984 | Aug 13, 1984 | — |
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 42-081-31266 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-081-31266 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/08131266, documented in the API reference.