GRAHAM, B. T.

Oil · District 08 · Lease #21990

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

268k BBL

Cum Gas

624k MCF

casinghead

Wells

4

Production

1993-01 — 2025-02

Peak Month

2002-07

Production History

Cum Oil: 268,021 BBL Cum Gas: 623,739 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,779 BBL/mo

Di (annual)

11.5%

b-factor

0.1

EUR

203,258 BBL

R-squared

0.877

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2018-08 — 2021-05 DE3 OPERATING LLC 34 mo
2003-10 — 2018-07 JM COX RESOURCES, L.P. 178 mo
1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5PIONEER NATURAL RES. USA INC.29,1002000-05-12
4PIONEER NATURAL RES. USA INC.19,1001997-06-10
3PIONEER NATURAL RES. USA INC.29,1001987-09-14
1XPIONEER NATURAL RES. USA INC.19,3001981-03-10