KEYSTONE CATTLE COMPANY

Oil · District 10 · Lease #29385

Operator: STRONGHOLD ENERGY II OPER, LLC

Cum Oil

449k BBL

Cum Gas

0 MCF

Wells

28

Production

1993-01 — 2026-03

Peak Month

2001-08

Production History

Cum Oil: 449,441 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,922 BBL/mo

Di (annual)

18.3%

b-factor

0.0

EUR

322,990 BBL

R-squared

0.718

type

exponential

Wells (28)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1010FDEVON ENERGY PRODUCTION CO, L.P.14,8002001-09-28
604FDEVON ENERGY PRODUCTION CO, L.P.14,8002001-08-15
606NDEVON ENERGY PRODUCTION CO, L.P.14,8002001-08-15
1005GDEVON ENERGY PRODUCTION CO, L.P.14,8002001-08-13
1006ADEVON ENERGY PRODUCTION CO, L.P.14,8002001-08-13
1009KDEVON ENERGY PRODUCTION CO, L.P.14,8002001-08-13
1008GDEVON ENERGY PRODUCTION CO, L.P.14,8002001-06-14
1007BDEVON ENERGY PRODUCTION CO, L.P.14,8002001-03-07
1002IDEVON ENERGY PRODUCTION CO, L.P.14,8002001-02-27
1003ADEVON ENERGY PRODUCTION CO, L.P.14,8002001-02-27
1004PDEVON ENERGY PRODUCTION CO, L.P.14,8002001-02-27
602DDEVON ENERGY PRODUCTION CO, L.P.14,8002001-02-27
601MDEVON ENERGY PRODUCTION CO, L.P.14,5002000-09-05
1001HDEVON ENERGY PRODUCTION CO, L.P.14,8002000-08-15
373GULF OIL CORP.26,5001985-12-31
375GULF OIL CORP.14,8501985-06-11
374GULF OIL CORP.14,8501985-04-24
369GULF OIL CORP.14,8501985-02-22
370GULF OIL CORP.14,8501985-02-22
371GULF OIL CORP.14,8501985-02-22
368GULF OIL CORP.14,8501985-02-21
366GULF OIL CORP.14,8001985-01-21
367GULF OIL CORP.14,8001985-01-21
364GULF OIL CORP.14,8001984-11-20
365GULF OIL CORP.14,8001984-11-20
360GULF OIL CORP.14,8501984-09-06
363GULF OIL CORP.14,8201984-09-06
359GULF OIL CORP.14,5201982-12-15
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