UNDERWOOD -C-

Oil · District 08 · Lease #25381

Operator: SUNRAY ENERGY, INC.

Cum Oil

335k BBL

Cum Gas

85k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

2018-03

Production History

Cum Oil: 335,182 BBL Cum Gas: 85,456 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

11,025 BBL/mo

Di (annual)

209.1%

b-factor

1.0

EUR

294,939 BBL

R-squared

0.784

type

hyperbolic

Operator History (from monthly production reports)

2012-11 — 2026-07 RING ENERGY, INC. 165 mo
2001-06 — 2012-10 SUNRAY ENERGY, INC. 137 mo
2000-06 — 2001-05 MIOCENE OIL & GAS, LTD. 12 mo
1996-08 — 2000-05 PHARAOH OIL & GAS, INC. 46 mo
1993-01 — 1996-07 MIOCENE OIL & GAS, INC. 43 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HRING ENERGY, INC.15,1002017-09-08
2HRING ENERGY, INC.15,1002017-06-28
1HRING ENERGY, INC.14,8002017-02-03
4VIN FISHER OPERATING, INC.15,1002014-05-08
5RING ENERGY, INC.15,1002014-05-08
3RING ENERGY, INC.14,7601979-12-19
2RING ENERGY, INC.14,8001979-01-17