VOGTSBERGER, ROBERT -A-

Oil · District 09 · Lease #1279

Operator: COBRA OIL & GAS CORPORATION

Cum Oil

170k BBL

Cum Gas

217k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

2000-09

Production History

Cum Oil: 169,623 BBL Cum Gas: 217,180 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

822 BBL/mo

Di (annual)

5.8%

b-factor

0.0

EUR

160,936 BBL

R-squared

0.543

type

exponential

Operator History (from monthly production reports)

1993-01 — 2026-07 COBRA OIL & GAS CORPORATION 403 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9COBRA OIL & GAS CORPORATION15,7002006-06-08
8COBRA OIL & GAS CORPORATION15,8001987-02-18
342-009-83720COBRA OIL & GAS CORPORATION------