TEXAS · WELLS · CRANE COUNTY · API 42-103-32069 · DISTRICT 7B

McKnight M. B. #121

Y

Crane County · Sand Hills (Tubb) field · Producing  · Vertical

Mcknight M. B. #121 (API 42-103-32069) is a well in Crane County operated by Ring Energy Inc., completed July 9, 2007 and listed as producing on the RRC schedule.

The RRC has issued 4 drilling permits between 1979 and 2005, permitted to 6,070 ft.

It was permitted by Devon Energy Production CO, L.P. and has since transferred to Ring Energy Inc. on the wellbore schedule.

Completion filings report 7 formation tops, including Rustler, Yates, Mcelroy, Judkins.

Its 4 leases have reported 11M barrels of oil and 53.1M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 222 wells, so these are lease totals, not this well alone.

Operator of record

Ring Energy Inc.

Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active (A)
P-5 last filed
Feb 9, 2026
Permits on file
998
Phone
(432) 682-7464

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleRing Energy Inc.
Production reportsRing Energy, Inc.through Apr 2026
Latest permitDevon Energy Production Co, L.P.Dec 27, 2005

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

6,070
total depth, ft
4
permits on file
Dec 27, 2005
last permit issued
Jul 9, 2007
completed
11M
cumulative oil, bbl
53.1M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 9, 2007
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 4 leases this well is completed on; they carry 222 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
McKnight, M.B. O-10-24277Running W (Wichita-Albany)Ring Energy, Inc.682.9M17.2MJan 1993 – Apr 2026
McKnight, M.B. O-10-24541Sand Hills (Wolfcamp)Ring Energy, Inc.431.82M8.76MJan 1993 – Apr 2026
McKnight, M. B. O-10-33220Sand Hills (Tubb)Ring Energy, Inc.1106.29M26.7MJan 1993 – Apr 2026
McKnight, M. B. G-10-174061Running W (Wichita-Albany)Ring Energy, Inc.16.95K353KJul 1999 – Jul 2006

Gas, mcf lease total

Last 12 months 632,050 · prior 12 799,830(-21%)

050K100K150K202420252026

Oil, barrels lease total

Last 12 months 66,109 · prior 12 100,971(-35%)

010K20K202420252026

Chain of custody

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

  1. 1Pennzoil Petroleum CompanyJan 1993 → Jan 1995
  2. 2Pennzoil Exploration & Prod. Co.Feb 1995 → Feb 1999
  3. 3Pennzenergy Exp. & Prod., L.L.C.Mar 1999 → Mar 2000
  4. 4Devon Energy Production Co, L.P.Apr 2000 → Dec 2018
  5. 5Stronghold Energy II Oper, LLCJan 2019 → Aug 2022
  6. 6Ring Energy, Inc.Sep 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
611296-99RecompletionDevon Energy Production Co, L.P.Dec 20, 2005Dec 27, 2005Jun 23, 20076,070
483957-99RecompletionPennzenergy Exp. & Prod., L.L.C.Apr 19, 1999Apr 27, 1999May 17, 19996,070
335597-99RecompletionChevron U. S. A. Inc.Sep 8, 1987Oct 9, 1987—6,070
50847-99DrillGulf Oil Corp.Jun 5, 1979Jun 5, 1979Sep 7, 19796,200

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 9, 2007McKnight M. B. O-10-33220Sand Hills (Tubb)Ring Energy Inc.Producing6,070
—McKnight M. B. G-10-174061Running W (Wichita-Albany)Ring Energy Inc.SWR-10-Well · shut in Dec 1, 20176,070
May 18, 1999McKnight M.B. O-10-24277Running W (Wichita-Albany)Ring Energy Inc.Not on Schedule—
Oct 24, 1987McKnight M.B. O-10-24541Sand Hills (Wolfcamp)Ring Energy Inc.Not on Schedule—
Oct 4, 1979McKnight M. B. O-10-25653Sand Hills N. (Ellenburger)Chevron U. S. A. Inc.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,670 ft elevation.Download CSV →

FormationMD ftSubsea
Rustler4242,246
Yates1,6151,055
McElroy2,508162
Judkins2,860-190
McKnight3,384-714
Wolfcamp5,676-3,006
Ellenburger6,021-3,351

Perforations

Perforated and open-hole intervals.

FromToType
4,4424,594Perforated
5,2325,418Perforated
5,5285,750Perforated
5,9225,970Perforated
6,0326,040Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62582912.25165 S
8.62583012.25565 S
2.3756,028——
5.56,0697.8751,400 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Dec 18, 2008Mar 27, 2008Yes
00Oct 29, 2008Dec 11, 1987Yes
00Oct 27, 1999Jul 26, 1999—
00Oct 6, 1999Jun 21, 1999Yes
00Sep 9, 1999——
00Aug 31, 1999——
00Jan 4, 1988Dec 11, 1987Yes
00Dec 24, 1987——
00Jan 12, 1984Oct 24, 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.

Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

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/10332069, documented in the API reference.