HEIDELBERG "A"

Oil · District 10 · Lease #33074

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

56k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2026-03

Peak Month

1993-01

Production History

Cum Oil: 55,782 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

446 BBL/mo

Di (annual)

15.2%

b-factor

0.4

EUR

51,358 BBL

R-squared

0.670

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PARKER & PARSLEY, LTD.19,7501991-01-23
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