DEAN BROS. "A"

Oil · District 7B · Lease #30920

Operator: SCHKADE, PATRICIA

Cum Oil

7k BBL

Cum Gas

97k MCF

casinghead

Wells

1

Production

2012-01 — 2025-05

Peak Month

2023-05

Production History

Cum Oil: 7,396 BBL Cum Gas: 97,036 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

272 BBL/mo

Di (annual)

68.5%

b-factor

0.4

EUR

7,657 BBL

R-squared

0.808

type

hyperbolic

Operator History (from monthly production reports)

2013-05 — 2026-07 RATTLESNAKE MOUNTAIN OIL LLC 159 mo
2012-01 — 2013-04 SCHKADE, PATRICIA 16 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4RATTLESNAKE MOUNTAIN OIL LLC14,5002011-12-01