TEXAS · WELLS · ANDREWS COUNTY · API 42-003-31793 · DISTRICT 7B
Serio (Grayburg)unit #5
Andrews County · Serio (Grayburg) field · Injection · Vertical
Serio (Grayburg)Unit #5 (API 42-003-31793) is a well in Andrews County operated by Fasken Oil And Ranch Ltd., completed September 21, 2004 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued January 16, 1979, permitted to 4,875 ft.
It was permitted by Atapco and has since transferred to Fasken Oil And Ranch Ltd. on the wellbore schedule.
Completion filings report 3 formation tops, including Rustler, Yates, Grayburg.
Its 3 leases have reported 3.11M barrels of oil and 383K mcf of gas since January 1993, last reporting in July 2026. The leases carry 90 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 81.8K barrels injected in the 12 months reported through February 2026.
Operator of record
Permitted by Atapco; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 14, 2025
- Permits on file
- 2,057
- Phone
- (432) 687-1777
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Fasken Oil and Ranch Ltd. |
| Production reports | Fasken Oil and Ranch, Ltd.through Mar 2026 |
| Latest permit | AtapcoJan 16, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,875
- total depth, ft
- 1
- permits on file
- Jan 16, 1979
- last permit issued
- Sep 21, 2004
- completed
- 3.11M
- cumulative oil, bbl
- 383K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 21, 2004
- Shut in
- —
- 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 3 leases this well is completed on; they carry 90 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Fee -Y- O-10-23655 | Serio (Grayburg) | Fasken Oil and Ranch, Ltd. | 34 | 1.43M | 210K | Jan 1993 – Jul 2026 |
| Serio (Grayburg)unit O-10-37270 | Serio (Grayburg) | Fasken Oil and Ranch, Ltd. | 52 | 1.54M | 159K | May 2004 – Jul 2026 |
| Fasken, David "28" O-10-23963 | Serio (Grayburg) | Tema Oil and Gas Company | 4 | 142K | 13.7K | Jan 1993 – Jul 2004 |
Oil, barrels lease total
Last 12 months 41,779 · prior 12 43,175(-3%)
Gas, mcf lease total
Last 12 months 3,960 · prior 12 3,860(+3%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1AtapcoJan 1993 → Dec 1998
- 2Fasken, BarbaraJan 1993 → Dec 1995
- 3Fasken Oil and Ranch, Ltd.Jan 1996 → Mar 2026
- 4Tema Oil and Gas, LLCJan 1999 → Feb 1999
- 5Tema Oil and Gas CompanyMar 1999 → Apr 2004
Permits
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 21, 2004 | Serio (Grayburg)unit O-10-37270 | Serio (Grayburg) | Fasken Oil and Ranch Ltd. | Injection | 4,875 |
| Sep 21, 2004 | Serio (Grayburg)unit O-10-37270 | Serio (Grayburg) | Fasken Oil and Ranch Ltd. | Not on Schedule | — |
| Sep 21, 2004 | Fee -Y- O-10-23655 | Serio (Grayburg) | Fasken Oil and Ranch Ltd. | Not on Schedule | — |
| Feb 16, 1979 | Fasken David 28 O-10-23963 | Serio (Grayburg) | Tema Oil and Gas Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,940 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,784 | 4,806 | Perforated |
| 4,815 | 4,819 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,657 | 12.25 | 700 S |
| 2.375 | 4,831 | — | — |
| 5.5 | 4,875 | 7.875 | 325 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 | Jul 10, 2024 | Nov 17, 2008 | — |
| 00 | Jun 17, 2024 | Nov 17, 2008 | — |
| 00 | Apr 14, 2009 | Nov 17, 2008 | — |
| 00 | Jun 22, 2004 | Mar 1, 1979 | — |
| 00 | Jan 12, 1984 | Mar 1, 1979 | — |
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 42-003-31793 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-31793 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 81.8K
- bbl, last 12 reported months
- 1.38M
- bbl, all reported
- Feb 2026
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000094487 | H-1 Injection | Active | 1,000 | 1,500 | 4,455–4,948 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 81,797 · prior 12 64,019(+28%)
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/00331793, documented in the API reference.