HEFFERNAN B UNIT

Oil · District 01 · Lease #17113

Operator: EOG RESOURCES, INC.

Cum Oil

437k BBL

Cum Gas

288k MCF

casinghead

Wells

2

Production

2013-07 — 2026-04

Peak Month

2014-06

Production History

Cum Oil: 436,611 BBL Cum Gas: 287,876 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,057 BBL/mo

Di (annual)

63.9%

b-factor

0.5

EUR

426,097 BBL

R-squared

0.861

type

hyperbolic

Operator History (from monthly production reports)

2013-07 — 2026-07 EOG RESOURCES, INC. 157 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HEOG RESOURCES, INC.19,0002013-05-14
4HEOG RESOURCES, INC.19,0002013-05-14