ZRZAVY UNIT

Operated by JAVELIN ENERGY PARTNERS MGMT LLC (P-5 100351) in the BRISCOE RANCH (EAGLEFORD) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18191District 01Field 12018200Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$143.7 M
Apr 2014 – May 2026
Value, last 12 filed months
$2.4 M
at the published price for each month
Months reported
146
no gaps in the span
Streams
2
oil, casinghead gas

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 5,584 leases and 8,017 wells, and the rule below applies to all of them.

Discovered
2007-11-05
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2013-04-09.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: MAY ELECT TO CLASSIFY AS PERMANENT GAS WELL

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

StreamBasisVolumeValue
OilDisposition2,537,518 bbl$141,082,766
Casinghead gasProduction819,043 Mcf$2,589,722
Total$143,672,488

Wells on this lease (9)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 28.6814, -98.9206. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.4 miles.

28.67839, -98.91525 · centre of the wells drawn, derived

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule
0.0%
0 of 9 wells
With a plug date
0.0%
0 of 9 wells
Median depth
8,301 ft
9 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
9100.0%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

Total depth in feet, 9 of 9 wells. Median 8,301 ft, with the middle half between 8,255 and 8,362 ft; the shallowest is 8,216 ft and the deepest 8,426 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 9 of 9 wells, Apr 2014 – May 2023. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 2014 – May 2023
9 of 9 wells

9 wells

42-16334322A3028,414 ftMay 2023
42-163340097H8,322 ftMar 2017
42-163340108H8,234 ftMar 2017
42-163337853H8,301 ftDec 2014
42-163337864H8,300 ftDec 2014
42-163337875H8,255 ftDec 2014
42-163337886H8,216 ftDec 2014
42-163337642H8,362 ftApr 2014
42-163337631H8,426 ftApr 2014

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (146)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

146 months

May 20264,622319106.413.05$492,799
Apr 20265,24254598.932.87$520,155
Mar 20261,73082089.753.15$157,850
Feb 20261,41960663.503.75$92,379
Jan 20261,2931,14059.138.00$85,573
Dec 20251,24390856.664.41$74,436
Nov 20251,6061,35658.593.93$99,420
Oct 20251,5971,36559.383.30$99,341
Sep 20252611,35562.743.08$20,544
Aug 20253,7931,38963.933.01$246,674
Jul 20253,2141,26266.743.32$218,686
Jun 20254,0861,11066.483.13$275,110
May 20252,14075660.553.23$132,021
Apr 20253,6551,02062.363.54$231,540
Mar 20252,6911,35067.704.27$187,943
Feb 20251,6481,28170.884.34$122,371
Jan 20252,0311,40874.324.28$156,968
Dec 20243,0191,59168.993.12$213,247
Nov 20242,0051,61769.052.20$142,000
Oct 20242,9351,81271.372.28$213,605
Sep 20242,5371,60969.612.36$180,405
Aug 20243,7451,39475.632.06$286,111
Jul 20244,2102,38979.932.15$341,634
Jun 20244,3571,63178.082.63$344,491
May 20243,8551,91678.812.20$308,025
Apr 20245,9821,74584.451.66$508,075
Mar 20242,0461,26280.301.55$166,244
Feb 20241,9342,40876.091.78$151,453
Jan 20248,2063,98673.023.30$612,347
Dec 20231,8714,94371.262.61$146,232
Nov 202311,4092,41177.892.81$895,416
Oct 202310,3811,66485.443.09$892,090
Sep 20239,78498989.042.74$873,872
Aug 202314,9101,91280.522.67$1,205,664
Jul 202314,9982,16774.852.64$1,128,325
Jun 202317,7354,47068.962.26$1,233,101
May 202315,6623,63870.622.23$1,114,154
Apr 20231,11717078.122.24$87,640
Mar 20230072.852.39$0
Feb 20237094375.112.47$53,359
Jan 202394323676.533.39$72,967
Dec 202249064876.415.73$41,153
Nov 20224957985.005.65$42,521
Oct 20222,66666287.185.86$236,304
Sep 20224,7982,00084.888.16$423,582
Aug 20226,7641,89694.529.13$656,638
Jul 20226,8862,762101.587.54$720,311
Jun 20226,5762,241115.097.98$774,709
May 20226,8792,391109.378.43$772,520
Apr 20226,2502,340104.226.84$667,375
Mar 20225,2973,528108.885.08$594,647
Feb 20226,7113,03991.054.86$625,803
Jan 20227,7474,92281.844.54$656,349
Dec 20218,3176,07771.323.90$616,863
Nov 20217,3837,33277.435.24$610,062
Oct 20217,4946,42079.795.71$634,629
Sep 20214,0661,74869.865.35$293,404
Aug 20217,4353,97166.024.22$507,619
Jul 20218,2155,12270.783.98$601,854
Jun 20216,5595,50669.493.38$474,399
May 20218,0656,71163.483.02$532,218
Apr 20218,0055,22760.362.76$497,600
Mar 20217,7494,06961.302.72$486,069
Feb 20216,6874,28557.805.55$410,282
Jan 20218,3714,22450.412.81$433,853
Dec 20207,4014,63144.642.68$342,771
Nov 20207,6574,65538.772.71$309,461
Oct 20209,2534,93836.972.48$354,322
Sep 20209,9226,09437.091.99$380,140
Aug 20208,4335,90639.982.39$351,238
Jul 202011,5785,00938.371.83$453,390
Jun 20208,4833,74734.901.69$302,390
May 20204,9931,98516.921.81$88,084
Apr 20208,6602,78914.751.80$132,767
Mar 20209,9344,98330.341.86$310,647
Feb 20209,8224,12449.881.98$498,090
Jan 202011,1833,49057.252.09$647,537
Dec 201911,5433,73759.012.30$689,764
Nov 201910,8953,51455.302.75$612,159
Oct 201912,3604,08753.472.42$670,774
Sep 201911,7223,58555.052.66$654,822
Aug 201913,1043,53653.112.30$704,102
Jul 201912,9324,83456.272.46$739,576
Jun 201912,2744,78552.782.49$659,742
May 201914,0274,32558.482.74$832,151
Apr 201913,2564,56762.632.75$842,786
Mar 201914,2423,36656.803.06$819,253
Feb 201914,9502,56450.852.79$767,367
Jan 201917,7302,93146.033.23$825,574
Dec 201811,9311,97146.594.19$564,115
Nov 201815,1143,55852.934.24$815,060
Oct 201816,2594,13761.443.40$1,013,011
Sep 201816,4987,79059.543.11$1,006,502
Aug 201817,5848,64859.403.07$1,071,009
Jul 201818,4609,07765.142.93$1,229,097
Jun 201816,9688,74660.183.08$1,048,045
May 201820,89914,83465.382.90$1,409,407
Apr 201820,9528,95663.842.90$1,363,555
Mar 201823,0628,08361.222.79$1,434,382
Feb 201821,3895,95761.782.77$1,337,890
Jan 201822,4978,15762.874.01$1,447,090
Dec 201721,9744,02057.272.92$1,270,195
Nov 201710,2632,33055.423.12$576,041
Oct 201726,4246,85749.292.98$1,322,898
Sep 201731,4559,33647.523.09$1,523,564
Aug 201734,8278,58745.373.00$1,605,900
Jul 201735,6108,48943.873.09$1,588,419
Jun 201739,4499,83742.493.09$1,706,558
May 201745,14810,31445.373.26$2,082,023
Apr 201747,77811,50847.933.21$2,326,959
Mar 201760,62713,81046.772.98$2,876,729
Feb 20175,2711,41550.452.95$270,100
Jan 201718,4815,02649.413.42$930,329
Dec 201619,8285,93748.763.72$988,916
Nov 201620,0255,69542.492.64$865,922
Oct 201618,1384,14846.193.09$850,613
Sep 201616,8064,30741.553.10$711,644
Aug 201621,7375,19041.442.92$915,959
Jul 201623,7509,33341.622.92$1,015,768
Jun 201624,6018,34845.352.69$1,138,077
May 201627,2477,98442.521.99$1,174,439
Apr 201626,4526,15536.561.99$979,340
Mar 201628,9116,36233.011.79$965,766
Feb 201629,4708,75726.472.06$798,142
Jan 201633,83113,13227.352.36$956,327
Dec 201535,04113,92032.362.00$1,161,786
Nov 201536,33212,49538.792.17$1,436,399
Oct 201540,04613,71243.552.43$1,777,277
Sep 201543,65214,04142.992.76$1,915,330
Aug 201549,01914,24640.162.87$2,009,525
Jul 201546,32812,82748.152.95$2,268,470
Jun 201552,24115,31656.152.88$2,977,486
May 201560,38417,26355.212.96$3,384,821
Apr 201566,79618,99849.822.71$3,379,196
Mar 201578,50622,18742.892.93$3,432,235
Feb 201582,27624,07744.662.98$3,746,104
Jan 2015115,28930,70843.433.10$5,102,215
Dec 201491,32625,15754.693.59$5,084,967
Nov 20143,60067770.464.25$256,535
Oct 201423,9277,21678.303.90$1,901,633
Sep 201426,3847,44386.164.05$2,303,356
Aug 201430,3188,66789.394.04$2,745,098
Jul 201436,05810,12596.564.18$3,524,079
Jun 201438,45910,59598.164.74$3,825,323
May 201454,90213,89194.734.73$5,266,523
Apr 201434,0389,31695.944.81$3,310,407

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

May 2026 — as filed, then multipliedworked
Oil                4,622 bbl  × $106.41 =   $491,827
Casinghead gas       319 Mcf  × $  3.05 =       $972

────────────────────────────────────────────────────
Month total                                 $492,799

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 01/O/18191 is the state's own key, not one this site invented.