12TH MAN 660 A

Oil · District 8A · Lease #70825

Operator: WISHBONE TEXAS OPERATING CO LLC

Cum Oil

25k BBL

Cum Gas

12k MCF

casinghead

Wells

1

Production

2018-09 — 2026-04

Peak Month

2018-10

Production History

Cum Oil: 24,707 BBL Cum Gas: 12,363 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

412 BBL/mo

Di (annual)

15.9%

b-factor

0.0

EUR

30,915 BBL

R-squared

0.378

type

exponential

Operator History (from monthly production reports)

2019-02 — 2026-07 RING ENERGY, INC. 90 mo
2018-09 — 2019-01 WISHBONE TEXAS OPERATING CO LLC 5 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1XHRING ENERGY, INC.19,0002018-02-15