ADCOCK (SPRABERRY) TBI UNIT

Oil · District 8A · Lease #67525

Operator: PURVIS OPERATING CO.

Cum Oil

323k BBL

Cum Gas

0 MCF

Wells

9

Production

1996-03 — 2026-03

Peak Month

1997-09

Production History

Cum Oil: 323,419 BBL Cum Gas: 0 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,642 BBL/mo

Di (annual)

11.8%

b-factor

0.1

EUR

292,997 BBL

R-squared

0.973

type

hyperbolic

Operator History (from monthly production reports)

2014-04 — 2026-07 ESTANCIA OIL & GAS, LLC 148 mo
2002-12 — 2014-03 PURVIS OPERATING CO. 136 mo
1996-03 — 2002-11 BROWN, TOM INC. 81 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4ESTANCIA OIL & GAS, LLC17,2501983-12-14
2WESTANCIA OIL & GAS, LLC17,8501983-11-08
3ESTANCIA OIL & GAS, LLC18,0001980-10-27
142-115-30408ESTANCIA OIL & GAS, LLC------
5W42-115-30363ESTANCIA OIL & GAS, LLC------
642-115-30373ESTANCIA OIL & GAS, LLC------
742-115-30191ESTANCIA OIL & GAS, LLC------
8W42-115-30245ESTANCIA OIL & GAS, LLC------
942-115-30077ESTANCIA OIL & GAS, LLC------