CONLEY -A-

Oil // district 13 // lease#12093

op: ZARVONA ENERGY LLC

cum_oil

486k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

2013-03

-- production_history

cum_oil: 485,977 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

5,055 BBL/mo

Di (annual)

37.4%

b-factor

0.7

EUR

366,724 BBL

R-squared

0.778

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4ECHO PRODUCTION, INC.18,8622014-09-05
3HECHO PRODUCTION, INC.18,2002013-05-30
2HECHO PRODUCTION, INC.18,0002012-05-17
1HECHO PRODUCTION, INC.18,2502011-10-25
142-197-00157--------
342-197-00228--------
542-197-00230--------
EOF // data source: Texas Railroad Commission // 2026