SPINKS "12"

Oil · District 08 · Lease #40749

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

55k BBL

Cum Gas

151k MCF

casinghead

Wells

1

Production

2009-08 — 2021-07

Peak Month

2009-10

Production History

Cum Oil: 54,625 BBL Cum Gas: 151,396 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,303 BBL/mo

Di (annual)

350.6%

b-factor

1.0

EUR

40,833 BBL

R-squared

0.676

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2019-07 — 2021-05 DE3 OPERATING LLC 23 mo
2009-08 — 2019-06 ENDEAVOR ENERGY RESOURCES L.P. 119 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.612,8082018-07-09