WELL · 42-181-30671 · DISTRICT 9

Super Unit #448

Y

Grayson County · Big Mineral Creek (Consolidated) field · Producing  · Vertical

Super Unit #448 (API 42-181-30671) is a well in Grayson County operated by Flintlock Exploration LLC, completed June 1, 2003 and listed as producing on the RRC schedule.

The RRC has issued 3 drilling permits between 1979 and 1988, permitted to 6,200 ft.

It was permitted by Shell Western E&P Inc. and has since transferred to Flintlock Exploration LLC on the wellbore schedule.

Completion filings report one formation top, including Strawn.

Its 3 leases have reported 3.02M barrels of oil and 1.59M mcf of gas since January 1993, last reporting in July 2026. The leases carry 225 wells, so these are lease totals, not this well alone.

Operator of record

Flintlock Exploration LLC

Permitted by Shell Western E&P Inc.; the EWA schedule now lists a different operator.

Based in
Frisco, TX
P-5 status
Active (A)
P-5 last filed
Mar 25, 2026
Phone
(210) 833-4977

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleVenoco Inc.
Production reportsFlintlock Exploration, LLCthrough Apr 2026
Latest permitShell Western E&P Inc.Jul 19, 1988

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

6,200
total depth, ft
3
permits on file
Jul 19, 1988
last permit issued
Jun 1, 2003
completed
3.02M
cumulative oil, bbl
1.59M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 1, 2003
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 225 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Super Unit O-13-29589Big Mineral Creek (Consolidated)Flintlock Exploration, LLC1622.46M1.33MDec 1998 – Jul 2026
Big Mineral Creek -S- Sand Unit O-13-14655Big Mineral Creek (S Sdstn.)Venoco, Inc.46539K242KJan 1993 – Jan 2001
Big Mineral Creek/Strawnii/Unit O-13-15794Big Mineral Creek (Strawn II)Venoco, Inc.1720.2K16.7KJan 1993 – Jan 1999

Oil, barrels lease total

Last 12 months 37,987 · prior 12 38,898(-2%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 44,833 · prior 12 32,641(+37%)

05K10K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Shell Western E&P Inc.Jan 1993 → Jul 1996
  2. 2Venoco, Inc.Aug 1996 → Mar 2005
  3. 3Blackwell BMC, LPApr 2005 → Mar 2007
  4. 4Blackwell BMC, LLCApr 2007 → May 2011
  5. 5Jetta Operating Company, Inc.Jun 2011 → Aug 2025
  6. 6Flintlock Exploration, LLCSep 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
348621-99RecompletionShell Western E&P Inc.Jul 7, 1988Jul 19, 1988—6,200
300290-99DrillShell Western E&P Inc.Mar 25, 1986Mar 25, 1986—6,200
47768-99DrillShell Oil CompanyApr 17, 1979Apr 17, 1979Sep 25, 19796,200

Completions

CompletedLeaseFieldOperatorStatusDepth
Jun 1, 2003Super Unit O-13-29589Big Mineral Creek (Consolidated)Flintlock Exploration LLCProducing6,200
Apr 28, 1986Super Unit O-13-29589Big Mineral Creek (Consolidated)Flintlock Exploration LLCShut IN · shut in May 1, 20036,200
Apr 28, 1986Big Mineral Creek/Strawnii/Unit O-13-15794Big Mineral Creek (Strawn II)Venoco Inc.Not on Schedule—
Apr 28, 1986Super Unit O-13-29589Big Mineral Creek (Consolidated)Flintlock Exploration LLCNot on Schedule—
Dec 15, 1985Big Mineral Creek -S- Sand Unit O-13-14655Big Mineral Creek (S Sdstn.)Venoco Inc.Not on Schedule—
Dec 15, 1985Super Unit O-13-29589Big Mineral Creek (Consolidated)Flintlock Exploration LLCNot on Schedule—
Jul 23, 1980Big Mineral Creek -S- Sand Unit O-13-14655Big Mineral Creek (S Sdstn.)Venoco Inc.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 687 ft elevation.Download CSV →

FormationMD ftSubsea
StrawnSTRAWN I3,437-2,750
StrawnSTRAWN II3,590-2,903
StrawnSTRAWN II3,738-3,051

Perforations

Perforated and open-hole intervals.

FromToType
3,5133,543Perforated
3,5133,670Perforated
3,5943,614Perforated
5,4855,799Perforated
5,4855,871Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,61012650 S
2.8755,900——
76,2008.751,500 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jul 27, 2012Dec 16, 2011—
00Mar 27, 2002Jan 31, 2002—
00Feb 27, 2002——
00Mar 9, 2000May 27, 1986Yes
00Jan 4, 1999Nov 4, 1992—
00Jan 4, 1999May 27, 1986Yes
00Dec 3, 1992Nov 4, 1992—
00Nov 19, 1986May 27, 1986Yes
00Nov 1, 1986——
00Apr 14, 1986Mar 24, 1986—
00Apr 1, 1986Aug 15, 1980—
00Jan 12, 1984Aug 15, 1980—

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.

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

0
bbl, last 12 reported months
912K
bbl, all reported
Sep 2012
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000058574H-1 InjectionCanceled Oct 26, 201202,7255,485–5,799

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0120112012

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/18130671, documented in the API reference.