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SAN MARCOS 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 18430District 01Field 12018200Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$11.4 M
Mar 2015 – May 2026
Value, last 12 filed months
$153 k
at the published price for each month
Months reported
135
no gaps in the span
Streams
2
oil, casinghead gas

The BRISCOE RANCH (EAGLEFORD) field

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
OilDisposition210,005 bbl$10,749,013
Casinghead gasProduction199,456 Mcf$601,957
Total$11,350,970

Wells on this lease (2)

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 28.7628, -98.7318. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

28.76277, -98.73183 · 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 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
7,674 ft
2 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.
2100.0%

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

Between 7,667 and 7,681 ft, median 7,674 ft, over the 2 wells that filed a depth.

Completions filed
Mar 2015
2 of 2 wells

2 wells

42-013352631H7,681 ftMar 2015——
42-013352642H7,667 ftMar 2015——

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 (135)

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

135 months

May 202648557106.413.05$51,782
Apr 202665710798.932.87$65,304
Mar 20261634389.753.15$14,765
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 2025169756.664.41$9,606
Nov 202503058.593.93$118
Oct 20250059.383.30$0
Sep 202502462.743.08$74
Aug 20250063.933.01$0
Jul 2025011866.743.32$391
Jun 202515823466.483.13$11,236
May 20250560.553.23$16
Apr 20250062.363.54$0
Mar 202566330667.704.27$46,191
Feb 202598344770.884.34$71,615
Jan 202506874.324.28$291
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 202432417775.632.06$24,869
Jul 202444034079.932.15$35,899
Jun 202445634678.082.63$36,516
May 202484243978.812.20$67,323
Apr 202432222084.451.66$27,558
Mar 202449538380.301.55$40,340
Feb 202455035076.091.78$42,474
Jan 202491939773.023.30$68,415
Dec 202352640671.262.61$38,543
Nov 202348052177.892.81$38,850
Oct 202374744385.443.09$65,191
Sep 202348244189.042.74$44,123
Aug 202367758680.522.67$56,078
Jul 202349061374.852.64$38,296
Jun 202382949368.962.26$58,281
May 202370648770.622.23$50,942
Apr 202384342278.122.24$66,799
Mar 202391645072.852.39$67,808
Feb 202367647875.112.47$51,953
Jan 202399762976.533.39$78,431
Dec 202267420276.415.73$52,658
Nov 202286134585.005.65$75,133
Oct 202233822187.185.86$30,763
Sep 202268617584.888.16$59,656
Aug 202283263494.529.13$84,427
Jul 20223341,040101.587.54$41,771
Jun 202216776115.097.98$19,826
May 2022327995109.378.43$44,155
Apr 20226701,342104.226.84$79,003
Mar 20228321,260108.885.08$96,984
Feb 2022055791.054.86$2,706
Jan 202250596481.844.54$45,704
Dec 202133282471.323.90$26,891
Nov 20214981,36577.435.24$45,708
Oct 20218321,89379.795.71$77,202
Sep 20218871,64269.865.35$70,752
Aug 20211,1632,29666.024.22$86,472
Jul 20219681,80470.783.98$75,699
Jun 20219851,55769.493.38$73,711
May 20216731,12463.483.02$46,114
Apr 202171896360.362.76$45,995
Mar 202149038461.302.72$31,080
Feb 202165291757.805.55$42,773
Jan 20216641,31950.412.81$37,179
Dec 20206841,64044.642.68$34,922
Nov 20208261,28038.772.71$35,488
Oct 20203431,32036.972.48$15,952
Sep 202049927137.091.99$19,047
Aug 202065048039.982.39$27,132
Jul 202054244738.371.83$21,612
Jun 20201,04445134.901.69$37,198
May 202016944216.921.81$3,662
Apr 20201,09599914.751.80$17,954
Mar 20201,1011,01230.341.86$35,283
Feb 20201,07095349.881.98$55,259
Jan 20201,14599057.252.09$67,625
Dec 20191,32699459.012.30$80,538
Nov 20191,0951,00055.302.75$63,304
Oct 20191,2002,04153.472.42$69,100
Sep 20191,2451,05555.052.66$71,341
Aug 20191,29092453.112.30$70,641
Jul 20191,20988856.272.46$70,215
Jun 201977392552.782.49$43,103
May 201976073658.482.74$46,462
Apr 20196218662.632.75$4,395
Mar 201980073056.803.06$47,675
Feb 20191,4801,71750.852.79$80,052
Jan 20191,7322,53546.033.23$87,907
Dec 20181,7022,17846.594.19$88,412
Nov 20181,3231,56552.934.24$76,658
Oct 20181,4291,67761.443.40$93,496
Sep 20181,1231,91259.543.11$72,806
Aug 20181,3862,13559.403.07$88,876
Jul 20181,3771,62665.142.93$94,465
Jun 20182,2732,33760.183.08$143,980
May 20181,5201,52665.382.90$103,804
Apr 20181,5781,81563.842.90$106,004
Mar 20181,7702,17461.222.79$114,418
Feb 20181,6221,62161.782.77$104,691
Jan 20181,7512,02362.874.01$118,196
Dec 20171,9602,08857.272.92$118,349
Nov 20171,8321,96955.423.12$107,669
Oct 20172,0341,97349.292.98$106,143
Sep 20172,1592,12447.523.09$109,153
Aug 20172,2731,63345.373.00$108,032
Jul 20171,3691,01443.873.09$63,189
Jun 20172,0971,70842.493.09$94,375
May 20172,0661,88445.373.26$99,883
Apr 20171,9521,79847.933.21$99,334
Mar 20172,1941,66946.772.98$107,593
Feb 20171,9231,50750.452.95$101,465
Jan 20172,5781,71349.413.42$133,235
Dec 20162,4371,68748.763.72$125,109
Nov 20162,3911,76642.492.64$106,264
Oct 20162,5572,17046.193.09$124,814
Sep 20162,9172,49141.553.10$128,925
Aug 20163,1052,80941.442.92$136,886
Jul 20163,1643,56441.622.92$142,108
Jun 20163,3613,49145.352.69$161,798
May 20163,5143,44842.521.99$156,280
Apr 20163,5363,45036.561.99$136,145
Mar 20163,8903,63933.011.79$134,937
Feb 20163,6103,89626.472.06$103,597
Jan 20164,7234,17227.352.36$139,038
Dec 20154,9324,48532.362.00$168,576
Nov 20155,3455,16938.792.17$218,535
Oct 20156,0255,00143.552.43$274,524
Sep 20156,3025,22042.992.76$285,322
Aug 20158,2215,45340.162.87$345,819
Jul 20156,4155,59448.152.95$325,357
Jun 20157,5525,76156.152.88$440,653
May 201510,9438,52755.212.96$629,364
Apr 201515,10712,94249.822.71$787,659
Mar 20153,4443,07042.892.93$156,723

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                  485 bbl  × $106.41 =    $51,609
Casinghead gas        57 Mcf  × $  3.05 =       $174

────────────────────────────────────────────────────
Month total                                  $51,782

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/18430 is the state's own key, not one this site invented.