BLACK FLAG STATE UNIT 253-254E

Operated by APACHE CORPORATION (P-5 27200) in the WOLFBONE (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 50139District 08Field 98359800Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$59.9 M
Jul 2018 – May 2026
Value, last 12 filed months
$2.7 M
at the published price for each month
Months reported
95
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 1,266 leases and 2,377 wells, and the rule below applies to all of them.

Discovered
2010-11-30
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 2015-04-08.

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: DESIGNATED AS UFT FIELD PER DOCKET 01-0299858

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
OilDisposition884,858 bbl$53,538,614
Casinghead gasProduction1,866,449 Mcf$6,378,824
Total$59,917,438

Wells on this lease (5)

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 31.2320, -103.5188. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.8 miles.

31.23443, -103.51894 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
10,489 ft
5 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.
5100.0%

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 10,147 and 11,970 ft, median 10,489 ft, over the 5 wells that filed a depth.

Completions filed
May 2014 – May 2024
5 of 5 wells

5 wells

42-3894085311BS10,147 ftMay 2024
42-389408522UA10,344 ftMay 2024
42-3893877999H10,489 ftJul 2020
42-3893736310H10,924 ftAug 2019
42-389340645H11,970 ftMay 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 (95)

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

95 months

May 20261605106.413.05$17,041
Apr 202642519798.932.87$42,611
Mar 20262,7072,90189.753.15$252,090
Feb 20261,8747,34763.503.75$146,553
Jan 20261,8415,51159.138.00$152,935
Dec 20253,0809,36656.664.41$215,848
Nov 20253,5079,45658.593.93$242,604
Oct 20254,72611,42559.383.30$318,388
Sep 20253,70710,39262.743.08$264,553
Aug 20254,68510,09563.933.01$329,946
Jul 20254,5399,75766.743.32$335,279
Jun 20254,6579,55466.483.13$339,489
May 20255,5289,65860.553.23$365,938
Apr 20257,03112,63362.363.54$483,213
Mar 20259,02615,44467.704.27$676,980
Feb 20257,63313,71570.884.34$600,562
Jan 20259,52115,62174.324.28$774,438
Dec 20248,62416,76368.993.12$647,293
Nov 202412,02418,54769.052.20$871,032
Oct 202417,89724,71071.372.28$1,333,682
Sep 202415,76427,34869.612.36$1,161,993
Aug 202413,70922,01275.632.06$1,082,236
Jul 202413,13620,78579.932.15$1,094,577
Jun 202428,85135,76378.082.63$2,346,885
May 20241,8753,13178.812.20$154,652
Apr 2024054084.451.66$896
Mar 20241,6993,72480.301.55$142,184
Feb 20244,51218,24276.091.78$375,855
Jan 20245,63822,17873.023.30$484,822
Dec 20235,77121,95571.262.61$468,560
Nov 20235,76021,55877.892.81$509,172
Oct 20236,40921,72385.443.09$614,650
Sep 20236,29925,51889.042.74$630,656
Aug 20236,00820,12180.522.67$537,545
Jul 20237,85826,44074.852.64$658,020
Jun 20235,13412,41868.962.26$382,086
May 20235,50316,01470.622.23$424,291
Apr 20239,20329,36078.122.24$784,639
Mar 20236,02923,99272.852.39$496,629
Feb 20233,94618,59875.112.47$342,241
Jan 20233,0438,21976.533.39$260,724
Dec 20222,52310,04576.415.73$250,331
Nov 20223,52016,17885.005.65$390,544
Oct 20224,50219,34187.185.86$505,895
Sep 20227,64524,82084.888.16$851,530
Aug 20227,75523,90594.529.13$951,187
Jul 20229,22729,236101.587.54$1,157,779
Jun 20229,18924,132115.097.98$1,250,068
May 202211,69528,770109.378.43$1,521,701
Apr 20226,65023,641104.226.84$854,711
Mar 20228,36326,023108.885.08$1,042,667
Feb 20228,67221,69391.054.86$894,988
Jan 20229,07519,32381.844.54$830,380
Dec 202110,66528,60571.323.90$872,162
Nov 20218,05123,55177.435.24$746,722
Oct 202110,35619,95179.795.71$940,303
Sep 202110,67824,78169.865.35$878,566
Aug 202111,53430,37366.024.22$889,667
Jul 202112,67831,16470.783.98$1,021,446
Jun 202112,31431,31469.493.38$961,561
May 202113,80333,49863.483.02$977,300
Apr 202114,85435,93360.362.76$995,706
Mar 202117,30040,30261.302.72$1,169,988
Feb 202118,33136,80557.805.55$1,263,724
Jan 202117,09131,03550.412.81$948,774
Dec 202010,63017,30344.642.68$520,817
Nov 202013,37923,08238.772.71$581,177
Oct 202016,96130,62336.972.48$702,945
Sep 202019,78936,65437.091.99$806,954
Aug 202025,98647,22439.982.39$1,151,554
Jul 202026,55045,52138.371.83$1,101,805
Jun 202015,69423,47734.901.69$587,404
May 202023,60737,87116.921.81$468,157
Apr 202038,27062,57314.751.80$677,388
Mar 202029,92548,56830.341.86$998,078
Feb 202012,80623,35149.881.98$685,014
Jan 202020,04935,03457.252.09$1,221,192
Dec 201920,51839,04459.012.30$1,300,739
Nov 201924,07038,51055.302.75$1,437,000
Oct 201933,27753,17553.472.42$1,907,927
Sep 201927,78743,12355.052.66$1,644,264
Aug 20191,27142453.112.30$68,480
Jul 20192,0582,13256.272.46$121,049
Jun 20197361,05152.782.49$41,464
May 2019595058.482.74$34,796
Apr 20191,1521,55762.632.75$76,433
Mar 2019199056.803.06$11,303
Feb 20199210050.852.79$4,957
Jan 20193571,83246.033.23$22,347
Dec 201834763946.594.19$18,841
Nov 201886123252.934.24$46,556
Oct 201861198161.443.40$40,873
Sep 20183441,04459.543.11$23,727
Aug 20185551,92759.403.07$38,876
Jul 20185722,24265.142.93$43,833

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                  160 bbl  × $106.41 =    $17,026
Casinghead gas         5 Mcf  × $  3.05 =        $15

────────────────────────────────────────────────────
Month total                                  $17,041

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. 08/O/50139 is the state's own key, not one this site invented.