MCKEAN, M.

Oil · District 01 · Lease #8403

Operator: STARR OPERATING COMPANY

Cum Oil

36k BBL

Cum Gas

138 MCF

casinghead

Wells

90

Production

1993-01 — 2026-03

Peak Month

1996-04

Production History

Cum Oil: 35,621 BBL Cum Gas: 138 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

218 BBL/mo

Di (annual)

9.1%

b-factor

0.0

EUR

28,372 BBL

R-squared

0.663

type

exponential

Operator History (from monthly production reports)

2011-08 — 2026-07 SOUTH SAM OPERATING COMPANY, LLC 180 mo
2009-05 — 2011-07 DIAMOND HORSESHOE OPER COMP, LLC 27 mo
1995-12 — 2009-04 SOUTH LOOP OPERATING, L.C. 161 mo
1993-06 — 1995-11 STARR OPERATING COMPANY 30 mo
1993-01 — 1993-05 KIPLING, INC. 5 mo

Wells (90)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
422SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
513SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
515SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
516SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
518SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
519SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
521SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
522SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
524SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
525SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
527SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
528SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
530SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
531SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
533SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
534SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
536SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
537SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
539SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
540SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
542SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
543SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
545SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
546SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
548SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
549SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
551SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
552SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
554SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
555SOUTH SAM OPERATING COMPANY, LLC18001984-02-13
107SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
109SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
110SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
111SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
112SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
113SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
114SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
115SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
116SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
117SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
118SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
119SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
207SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
210SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
211SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
219SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
220SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
320SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
410SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
414SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
415SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
416SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
419SOUTH SAM OPERATING COMPANY, LLC18001982-08-20
307SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
308SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
309SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
310SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
311SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
312SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
313SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
314SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
315SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
316SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
317SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
318SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
321SOUTH SAM OPERATING COMPANY, LLC18001982-08-13
108SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
120SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
121SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
208SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
209CALFAS CATTLE & OIL, LLC18001982-08-12
212SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
213SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
214SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
215SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
216SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
217SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
218SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
221SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
319SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
407SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
409SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
411SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
412SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
417SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
418SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
420SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
421SOUTH SAM OPERATING COMPANY, LLC18001982-08-12
408SOUTH SAM OPERATING COMPANY, LLC18001982-06-16
413SOUTH SAM OPERATING COMPANY, LLC18001982-06-16