MineralRecord
Log inSign up

KOOPMAN-LANG (A) 01

Operated by MARATHON OIL EF LLC (P-5 525398) in the DE WITT (EAGLE FORD SHALE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 283612District 02Field 24492500Hydrogen sulphide fieldST-1 filingCondensateGasSaveExport
Value, all time
$37.8 M
Jul 2017 – May 2026
Value, last 12 filed months
$285 k
at the published price for each month
Months reported
107
no gaps in the span
Streams
2
condensate, gas

The DE WITT (EAGLE FORD SHALE) 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 752 leases and 817 wells, and the rule below applies to all of them.

Discovered
2009-04-22
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2018-01-23.

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: “DOCKET #02-0305519, NUNC PRO TUNC EFF 1/23/2018.”

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
ST-12none—2 dockets

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
CondensateDisposition482,836 bbl$27,491,817
GasProduction3,285,395 Mcf$10,269,912
Total$37,761,730

Wells on this lease (1)

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 29.0333, -97.5609. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

29.03329, -97.56086 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
13,677 ft
1 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.
1100.0%

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

The one well that filed a depth was drilled to 13,677 ft.

Completions filed
Jul 2017
1 of 1 wells

1 well

42-1233437402H13,677 ftJul 2017——

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 (107)

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

107 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20255685,66256.664.41$57,171
Nov 20254626,64458.593.93$53,156
Oct 20254175,72359.383.30$43,675
Sep 20255347,51162.743.08$56,614
Aug 20257518,31563.933.01$73,079
Jul 2025915366.743.32$1,108
Jun 202549066.483.13$548
May 2025136260.553.23$988
Apr 20252493,10262.363.54$26,518
Mar 20256616,68367.704.27$73,275
Feb 20255035,14070.884.34$57,965
Jan 20256066,62974.324.28$73,401
Dec 20246786,51968.993.12$67,123
Nov 20246445,85469.052.20$57,338
Oct 20246625,95771.372.28$60,837
Sep 20245915,82569.612.36$54,912
Aug 20246686,07375.632.06$63,053
Jul 20246446,11579.932.15$64,601
Jun 20246505,79678.082.63$66,019
May 20246956,15478.812.20$68,302
Apr 20247066,10084.451.66$69,743
Mar 20248536,35880.301.55$78,320
Feb 20247325,92876.091.78$66,271
Jan 20247116,13873.023.30$72,158
Dec 20237336,57771.262.61$69,404
Nov 20237326,43577.892.81$75,082
Oct 20237506,45485.443.09$84,005
Sep 20236856,97689.042.74$80,072
Aug 20237607,93580.522.67$82,405
Jul 20237738,37074.852.64$79,971
Jun 20237938,08168.962.26$72,936
May 20238568,92570.622.23$80,330
Apr 20238028,87378.122.24$82,508
Mar 20236908,55572.852.39$70,740
Feb 20237667,79675.112.47$76,757
Jan 20236939,49176.533.39$85,188
Dec 20224608,27876.415.73$82,574
Nov 20225309,21385.005.65$97,068
Oct 20226139,88787.185.86$111,416
Sep 20226549,52884.888.16$133,295
Aug 202272610,16294.529.13$161,372
Jul 202252610,609101.587.54$133,445
Jun 202248010,526115.097.98$139,211
May 202255710,986109.378.43$153,564
Apr 202291810,434104.226.84$167,017
Mar 202294310,268108.885.08$154,798
Feb 20227559,65491.054.86$115,650
Jan 202283910,62881.844.54$116,890
Dec 20211,08911,05571.323.90$120,772
Nov 202199811,44877.435.24$137,227
Oct 202189411,54479.795.71$137,293
Sep 20211,19012,27169.865.35$148,795
Aug 20211,53611,51366.024.22$149,998
Jul 20211,24412,35670.783.98$137,253
Jun 20211,27812,92369.493.38$132,496
May 20211,30614,32763.483.02$126,139
Apr 20211,49117,10460.362.76$137,177
Mar 20216586,61561.302.72$58,308
Feb 20215871,83657.805.55$44,115
Jan 20211,68719,26350.412.81$139,176
Dec 20201,68619,61844.642.68$127,750
Nov 20201,48819,04038.772.71$109,223
Oct 20201,55721,08036.972.48$109,808
Sep 20201,61421,30837.091.99$102,288
Aug 20201,72822,75339.982.39$123,354
Jul 20201,92323,34138.371.83$116,386
Jun 20201,67524,91034.901.69$100,563
May 20201,81927,48416.921.81$80,654
Apr 20201,72828,14014.751.80$76,263
Mar 20201,75631,83930.341.86$112,378
Feb 20201,86132,15949.881.98$156,523
Jan 20202,14328,47257.252.09$182,328
Dec 20192,32427,79859.012.30$201,196
Nov 20191,42721,47555.302.75$137,984
Oct 20192,19228,03653.472.42$185,012
Sep 20193,80225,88855.052.66$278,092
Aug 20194,17728,18453.112.30$286,787
Jul 20194,60630,06256.272.46$333,134
Jun 20194,57930,15052.782.49$316,789
May 20195,15232,14058.482.74$389,363
Apr 20195,28534,85162.632.75$426,864
Mar 20194,90139,81756.803.06$400,300
Feb 20195,14840,13050.852.79$373,828
Jan 20195,13249,48446.033.23$395,969
Dec 20186,38652,44046.594.19$517,008
Nov 20186,68756,86952.934.24$594,911
Oct 201810,78260,92261.443.40$869,464
Sep 201811,34666,75159.543.11$883,003
Aug 201812,50377,26959.403.07$979,628
Jul 201813,25585,99465.142.93$1,115,555
Jun 201814,48493,71960.183.08$1,160,013
May 201816,832106,66265.382.90$1,409,881
Apr 201819,895112,34963.842.90$1,595,999
Mar 201823,359131,10161.222.79$1,795,395
Feb 201823,483131,87661.782.77$1,815,565
Jan 201827,429170,29862.874.01$2,407,240
Dec 201734,739182,29857.272.92$2,522,090
Nov 201735,202191,37055.423.12$2,547,655
Oct 201738,585210,71749.292.98$2,530,567
Sep 201741,065220,94847.523.09$2,633,537
Aug 201730,909148,12645.373.00$1,847,371
Jul 20172,18912,10043.873.09$133,388

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.

Dec 2025 — as filed, then multipliedworked
Condensate           568 bbl  × $ 56.66 =    $32,183
Gas                5,662 Mcf  × $  4.41 =    $24,988

────────────────────────────────────────────────────
Month total                                  $57,171

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. 02/G/283612 is the state's own key, not one this site invented.