SCHUECH UNIT NO. 4

Oil · District 02 · Lease #7829

Operator: ENGELKE, R. H.

Cum Oil

30k BBL

Cum Gas

58k MCF

casinghead

Wells

1

Production

1993-01 — 1995-10

Peak Month

1993-03

Production History

Cum Oil: 29,614 BBL Cum Gas: 58,337 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,663 BBL/mo

Di (annual)

454.7%

b-factor

1.0

EUR

52,618 BBL

R-squared

0.904

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 1996-01 ENGELKE, R. H. 37 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CIBOLO ENERGY OPERATING, INC.87,1162007-10-30