UNDERWOOD -B-

Oil · District 10 · Lease #25804

Operator: SUNRAY ENERGY, INC.

Cum Oil

236k BBL

Cum Gas

0 MCF

Wells

6

Production

1993-01 — 2026-03

Peak Month

2018-01

Production History

Cum Oil: 235,672 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

7,357 BBL/mo

Di (annual)

54.6%

b-factor

0.1

EUR

179,781 BBL

R-squared

0.734

type

hyperbolic

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HRING ENERGY, INC.15,1002017-09-08
2HRING ENERGY, INC.14,8002017-07-28
1HRING ENERGY, INC.24,8002017-02-07
3WALKER, CHAS. L.14,9501980-11-05
2WALKER, CHAS. L.14,7501980-06-11
1WALKER, CHAS. L.14,8501979-11-28
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