STATE OF TEXAS TANNEHILL UNIT

Oil // district 8 // lease#27908

op: WACO PETRO, LP

cum_oil

177k BBL

cum_gas

0 MCF

wells

15

production

1996-07 — 2026-03

peak_month

1997-07

-- production_history

cum_oil: 177,334 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,850 BBL/mo

Di (annual)

64.9%

b-factor

0.3

EUR

127,708 BBL

R-squared

0.814

type

hyperbolic

-- wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
13ANATHEMA, INC.13,1001990-12-04
12ANATHEMA, INC.13,0001990-08-21
11ANATHEMA, INC.13,0001990-02-22
15ANATHEMA, INC.22,9991989-07-12
8ANATHEMA, INC.12,9991989-07-12
1REMUDA OPERATING COMPANY13,0001989-05-01
14ANATHEMA, INC.12,9991989-03-27
10ANATHEMA, INC.13,0001988-04-27
7ANATHEMA, INC.13,0001987-05-15
9ANATHEMA, INC.23,0001985-07-22
4ANATHEMA, INC.23,0001985-02-15
6COX, ROBERT G. & ASSOCIATES,INC.13,0001983-06-07
5ANATHEMA, INC.13,0001983-04-06
3ANATHEMA, INC.13,0001983-03-21
2ANATHEMA, INC.13,1001982-12-31
EOF // multi-state drilling data platform // 2026