UNDERWOOD D

Oil · District 08 · Lease #45352

Operator: RING ENERGY, INC.

Cum Oil

441k BBL

Cum Gas

112k MCF

casinghead

Wells

6

Production

2014-08 — 2026-04

Peak Month

2018-10

Production History

Cum Oil: 440,918 BBL Cum Gas: 112,455 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,326 BBL/mo

Di (annual)

22.1%

b-factor

0.0

EUR

397,351 BBL

R-squared

0.550

type

exponential

Operator History (from monthly production reports)

2014-08 — 2026-07 RING ENERGY, INC. 144 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HRING ENERGY, INC.15,1002017-09-22
3HRING ENERGY, INC.15,1002017-09-22
1HRING ENERGY, INC.14,8002017-02-03
4RING ENERGY, INC.15,1002014-09-29
1VIN FISHER OPERATING, INC.15,1002014-06-18
3RING ENERGY, INC.16,7502014-06-18