DONNELL, J.D.

Oil · District 7B · Lease #21924

Operator: SKY DEVELOPMENT CORPORATION

Cum Oil

1k BBL

Cum Gas

8k MCF

casinghead

Wells

1

Production

1993-01 — 2000-01

Peak Month

1998-06

Production History

Cum Oil: 1,404 BBL Cum Gas: 8,046 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

203 BBL/mo

Di (annual)

407.4%

b-factor

0.5

EUR

1,115 BBL

R-squared

0.605

type

hyperbolic

Operator History (from monthly production reports)

1997-10 — 2001-03 SKY DEVELOPMENT CORPORATION 42 mo
1993-01 — 1997-09 DONNELL PRODUCTION COMPANY 57 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SKY DEVELOPMENT CORPORATION14,3001983-08-29