ROBERTS, T. W.

Oil · District 8A · Lease #3569

Operator: SIERRA LIMA OIL & GAS, LLC

Fields: LEVELLAND

Cum Oil

354k BBL

Cum Gas

149k MCF

casinghead

Wells

9

Production

1993-01 — 2026-04

Peak Month

1994-08

Production History

Cum Oil: 353,911 BBL Cum Gas: 149,391 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,947 BBL/mo

Di (annual)

11.5%

b-factor

1.2

EUR

418,083 BBL

R-squared

0.894

type

hyperbolic

Operator History (from monthly production reports)

2025-12 — 2026-07 AVIATOR ENERGY, LLC 8 mo
2024-04 — 2025-11 SIERRA LIMA OIL & GAS, LLC 20 mo
2018-04 — 2024-03 SCOUT ENERGY MANAGEMENT LLC 72 mo
2017-05 — 2018-03 LINN OPERATING, LLC 11 mo
2009-10 — 2017-04 LINN OPERATING, INC. 91 mo
2004-05 — 2009-09 FOREST OIL PERMIAN CORPORATION 65 mo
1993-01 — 2004-04 MAYNARD OIL CO. 136 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6AAVIATOR ENERGY, LLC15,2001987-06-26
142-219-00237AVIATOR ENERGY, LLC------
2W42-219-00238AVIATOR ENERGY, LLC------
342-219-00239AVIATOR ENERGY, LLC------
4W42-219-00240AVIATOR ENERGY, LLC------
5W42-219-30907AVIATOR ENERGY, LLC------
7W42-219-31173AVIATOR ENERGY, LLC------
842-219-31175AVIATOR ENERGY, LLC------
9WS42-219-80014AVIATOR ENERGY, LLC------