SIEBER

Oil · District 08 · Lease #38054

Operator: MARSHALL & WINSTON, INC.

Cum Oil

38k BBL

Cum Gas

21k MCF

casinghead

Wells

1

Production

2006-12 — 2026-04

Peak Month

2007-07

Production History

Cum Oil: 37,982 BBL Cum Gas: 21,323 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

694 BBL/mo

Di (annual)

58.0%

b-factor

0.8

EUR

39,405 BBL

R-squared

0.766

type

hyperbolic

Operator History (from monthly production reports)

2023-05 — 2026-07 JETTA OPERATING COMPANY, INC. 39 mo
2006-12 — 2023-04 MARSHALL & WINSTON, INC. 197 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1JETTA OPERATING COMPANY, INC.26,5002006-07-07