COOK, W. I. EST. SEC. /139B/

Oil · District 7B · Lease #3574

Operator: YOUNG, MARSHALL R., OIL CO.

Fields: COOK RANCH

Cum Oil

1k BBL

Cum Gas

13 MCF

casinghead

Wells

8

Production

1993-01 — 1994-01

Peak Month

1993-03

Production History

Cum Oil: 1,051 BBL Cum Gas: 13 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

142 BBL/mo

Di (annual)

168.5%

b-factor

0.0

EUR

1,008 BBL

R-squared

0.785

type

exponential

Operator History (from monthly production reports)

1998-11 — 2002-12 STASNEY, H. R. & SONS, LTD. 50 mo
1993-01 — 1998-10 YOUNG, MARSHALL R., OIL CO. 70 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14STASNEY H. R. & SONS LTD.12,0001987-09-03
13YOUNG MARSHALL R. OIL CO.21,6511986-12-30
1042-417-30638STASNEY H. R. & SONS LTD.------
1142-417-31465STASNEY H. R. & SONS LTD.------
342-417-03802STASNEY H. R. & SONS LTD.------
442-417-03801STASNEY H. R. & SONS LTD.------
742-417-30486STASNEY H. R. & SONS LTD.------
842-417-30513STASNEY H. R. & SONS LTD.------