WELL · 42-181-31438 · DISTRICT 9
Ferrill G. #4
Grayson County · Big Mineral Creek (Consolidated) field · Injection · Directional
Ferrill G. #4 (API 42-181-31438) is a well in Grayson County operated by Flintlock Exploration LLC, completed March 11, 2008 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued February 13, 2008, permitted to 10,000 ft.
It was permitted by Blackwell Bmc, LLC and has since transferred to Flintlock Exploration LLC on the wellbore schedule.
Completion filings report 4 formation tops, including U Sand, V Sand, V Shake, V Shale.
Its lease has reported 45.7K barrels of oil and 74.1K mcf of gas since March 2008, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 4.31K barrels injected in the 12 months reported through September 2025.
Operator of record
Permitted by Blackwell BMC, LLC; the EWA schedule now lists a different operator.
Frisco, TX · P-5 Y, filed Jan 4, 2026 · (806) 435-4741
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Flintlock Exploration LLC |
| Production reports | Flintlock Exploration, LLCthrough Apr 2026 |
| Latest permit | Blackwell BMC, LLCFeb 13, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 1
- permits on file
- Feb 13, 2008
- last permit issued
- Mar 11, 2008
- completed
- 45.7K
- cumulative oil, bbl
- 74.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 11, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ferrill, G. O-13-31394 | Big Mineral Creek (Consolidated) | Flintlock Exploration, LLC | 2 | 45.7K | 74.1K | Mar 2008 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,172 · prior 12 956(+23%)
Gas, mcf lease total
Last 12 months 2,592 · prior 12 3,668(-29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Blackwell BMC, LLCDec 2008 → May 2011
- 2Jetta Operating Company, Inc.Jun 2011 → Aug 2025
- 3Flintlock Exploration, LLCSep 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 654643-99 | Drill | Blackwell BMC, LLC | Feb 5, 2008 | Feb 13, 2008 | Feb 23, 2008 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-13-31394 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 621 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| U Sand | 6,958 | -6,337 |
| V Sand | 7,535 | -6,914 |
| V Shake | 8,163 | -7,542 |
| V Shale | 8,163 | -7,542 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,688 | 7,734 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,028 | 12.25 | 650 S |
| 5.5 | 8,322 | 7.875 | 815 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 | Mar 8, 2013 | Aug 30, 2012 | — |
| 00 | Nov 10, 2009 | Mar 12, 2009 | Yes |
| 00 | Sep 21, 2009 | — | — |
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 42-181-31438 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-181-31438 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 4.31K
- bbl, last 12 reported months
- 303K
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000101854 | H-1 Injection | Active | 2,000 | 3,000 | 7,688–7,734 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 4,305 · prior 12 4,886(-12%)
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/18131438, documented in the API reference.