GREER ESTATE

Oil · District 7C · Lease #4589

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

26k BBL

Cum Gas

976k MCF

casinghead

Wells

3

Production

1993-01 — 2026-04

Peak Month

1993-09

Production History

Cum Oil: 26,490 BBL Cum Gas: 975,755 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

127 BBL/mo

Di (annual)

5.3%

b-factor

0.0

EUR

26,607 BBL

R-squared

0.695

type

exponential

Operator History (from monthly production reports)

2008-01 — 2026-07 PIONEER NATURAL RES. USA, INC. 223 mo
2006-05 — 2007-12 CIMAREX ENERGY CO. OF COLORADO 20 mo
2004-11 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 18 mo
1999-10 — 2004-10 NADEL AND GUSSMAN PERMIAN,L.L.C. 61 mo
1998-04 — 1999-09 CHESAPEAKE OPERATING, INC. 18 mo
1995-09 — 1998-03 HUGOTON ENERGY CORPORATION 31 mo
1993-05 — 1995-08 CONSOLIDATED OIL & GAS, INC 28 mo
1993-01 — 1993-04 AMAX OIL & GAS INC. 4 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.18,3001985-01-07
142-383-10222PIONEER NATURAL RES. USA, INC.------
242-383-10223PIONEER NATURAL RES. USA, INC.------