MITTASCH, CAROL L. ET AL

Oil · District 03 · Lease #19435

Operator: TRIVISTA OPERATING LLC

Cum Oil

57k BBL

Cum Gas

222k MCF

casinghead

Wells

4

Production

1993-01 — 2025-12

Peak Month

1995-08

Production History

Cum Oil: 56,668 BBL Cum Gas: 221,811 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

479 BBL/mo

Di (annual)

17.6%

b-factor

0.5

EUR

53,283 BBL

R-squared

0.888

type

hyperbolic

Operator History (from monthly production reports)

2013-10 — 2026-07 TRIVISTA OPERATING LLC 154 mo
2003-12 — 2013-09 TEXAS VANGUARD OIL COMPANY 118 mo
1996-07 — 2003-11 GREENBRIAR ENERGY INC. 89 mo
1993-01 — 1996-06 COATES ENERGY TRUST 42 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1TRIVISTA OPERATING LLC25,7002002-02-28
4TRIVISTA OPERATING LLC25,7001987-09-14
3TRIVISTA OPERATING LLC15,7001987-01-21
2TRIVISTA OPERATING LLC15,7001986-12-09