TUBB, J. B. -A-

Oil · District 08 · Lease #16007

Operator: STRONGHOLD ENERGY II OPER, LLC

Cum Oil

213k BBL

Cum Gas

4.4M MCF

casinghead

Wells

19

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 212,834 BBL Cum Gas: 4,383,177 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,150 BBL/mo

Di (annual)

24.6%

b-factor

0.7

EUR

216,967 BBL

R-squared

0.877

type

hyperbolic

Operator History (from monthly production reports)

2022-09 — 2026-07 RING ENERGY, INC. 47 mo
2018-11 — 2022-08 STRONGHOLD ENERGY II OPER, LLC 46 mo
1993-01 — 2018-10 CHEVRON U. S. A. INC. 310 mo

Wells (19)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
27RING ENERGY, INC.34,5001997-11-25
28RING ENERGY, INC.24,5101996-05-30
32RING ENERGY, INC.35,8001996-05-30
36RING ENERGY, INC.34,4501996-04-22
44RING ENERGY, INC.23,6001996-04-22
39RING ENERGY, INC.23,6501994-02-17
48RING ENERGY, INC.23,5501994-02-17
35 URING ENERGY, INC.24,6001993-08-18
37 URING ENERGY, INC.25,9001988-09-19
41RING ENERGY, INC.13,6001983-04-27
40RING ENERGY, INC.15,7501978-10-13
34RING ENERGY, INC.14,6001977-10-24
2342-103-31276RING ENERGY, INC.------
2442-103-31279RING ENERGY, INC.------
2542-103-31280RING ENERGY, INC.------
26 U42-103-31281RING ENERGY, INC.------
2942-103-31365RING ENERGY, INC.------
3042-103-31454RING ENERGY, INC.------
442-103-00836RING ENERGY, INC.------