DONLEY

Oil · District 7C · Lease #18006

Operator: ELCO OIL & GAS, INC.

Cum Oil

3k BBL

Cum Gas

0 MCF

Wells

2

Production

2011-11 — 2026-04

Peak Month

2011-11

Production History

Cum Oil: 3,230 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

139 BBL/mo

Di (annual)

120.4%

b-factor

0.4

EUR

2,193 BBL

R-squared

0.476

type

hyperbolic

Operator History (from monthly production reports)

2014-01 — 2026-07 ELCO OIL & GAS, INC. 151 mo
2011-11 — 2013-12 ELCO OIL & GAS 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ELCO OIL & GAS, INC.11,0002012-09-07
1ELCO OIL & GAS, INC.36,7002011-08-25