TEXAS · WELLS · HEMPHILL COUNTY · FILLINGIM 88 LEASE · API 42-211-32937 · DISTRICT 08
Fillingim 88 #4
Hemphill County · Buffalo Wallow (Granite Wash) field · Producing · Vertical
Fillingim 88 #4 (API 42-211-32937) is a well in Hemphill County operated by Unbridled Resources LLC, completed May 6, 2004 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 3, 2004, permitted to 11,625 ft.
It was permitted by Dominion Oklahoma Texas E&P, Inc and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Brown Dolomite, B/Heebner-T/Douglas, T/Tonkaw, Avant Ls.
Its lease has reported 9.96K barrels of oil and 803K mcf of gas since May 2004, last reporting volume in April 2026.
Operator of record
Permitted by Dominion Oklahoma Texas E&P, Inc; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 17, 2025
- Permits on file
- 6
- Phone
- (318) 751-3917
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unbridled Resources LLC |
| Production reports | Unbridled Resources, LLCthrough Apr 2026 |
| Latest permit | Dominion Oklahoma Texas E&P, IncMar 3, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,625
- total depth, ft
- 1
- permits on file
- Mar 3, 2004
- last permit issued
- May 6, 2004
- completed
- 9.96K
- cumulative oil, bbl
- 803K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2004 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 6, 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 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 |
|---|---|---|---|---|---|---|
| Fillingim 88 G-14-202534 | Buffalo Wallow (Granite Wash) | Unbridled Resources, LLC | 1 | 9.96K | 803K | May 2004 – Apr 2026 |
Gas, mcf lease total
Last 12 months 17,867 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dominion Oklahoma Texas E&P, IncMay 2004 → Aug 2007
- 2Linn Operating, Inc.Sep 2007 → Apr 2013
- 3Unbridled Resources, LLCJul 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 542755-99 | Drill | Dominion Oklahoma Texas E&P, Inc | Mar 2, 2004 | Mar 3, 2004 | Mar 31, 2004 | 12,150 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 6, 2004 | Fillingim 88 G-14-202534 | Buffalo Wallow (Granite Wash) | Unbridled Resources LLC | Producing | 11,625 |
Formation tops
As filed on W-2/G-1. Subsea from 2,606 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Dolomite | 4,451 | -1,845 |
| B/Heebner-T/Douglas | 7,987 | -5,381 |
| T/Tonkaw | 8,803 | -6,197 |
| Avant LS | 9,464 | -6,858 |
| T/Britt Granite Wash | 11,122 | -8,516 |
| T/Granite Wash A&b | 11,252 | -8,646 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,125 | 11,304 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,521 | 12.25 | 750 S |
| 5.5 | 11,622 | 7.875 | 310 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 | Sep 3, 2004 | Jun 23, 2004 | Yes |
| 00 | Aug 3, 2004 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Sep 21, 2007. Density, Gamma ray, Neutron, 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 |
|---|---|---|---|---|
| Neutron/Density PorosityCOMPENSATED Z-DENSILOG COMP. NEUTRON GAMMA RAYSpans Brown Dolomite, B/Heebner-T/Douglas, T/Tonkaw, Avant Ls, T/Britt Granite Wash, T/Granite Wash A&B | TIFF | 7,800 to 11,630 | Sep 21, 2007run Apr 15, 2004 | — |
| ResistivityHIGH DEFINITION INDUCTION GAMMA RAY LOGSpans Brown Dolomite, B/Heebner-T/Douglas, T/Tonkaw, Avant Ls, T/Britt Granite Wash, T/Granite Wash A&B | TIFF | 1,521 to 11,630 | Sep 21, 2007run Apr 15, 2004 | — |
"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 42-211-32937 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-32937 → 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/21132937, documented in the API reference.