SAU 21-3

Oil · District 7C · Lease #13540

Operator: MARINER ENERGY, INC.

Cum Oil

131k BBL

Cum Gas

615k MCF

casinghead

Wells

4

Production

1993-10 — 2026-04

Peak Month

2015-05

Production History

Cum Oil: 130,655 BBL Cum Gas: 615,144 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

626 BBL/mo

Di (annual)

6.1%

b-factor

0.2

EUR

131,165 BBL

R-squared

0.373

type

hyperbolic

Operator History (from monthly production reports)

2010-12 — 2026-07 APACHE CORPORATION 188 mo
1996-07 — 2010-11 MARINER ENERGY, INC. 173 mo
1993-10 — 1996-06 HARDY OIL & GAS USA INC. 33 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3CAPACHE CORPORATION18,4002014-11-04
3BAPACHE CORPORATION18,3502004-02-11
3AAPACHE CORPORATION18,6002003-01-28
3APACHE CORPORATION18,4001993-08-20