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FORT STOCKTON UNIT

Operated by CLIFFWOOD PRODUCTION CO. (P-5 160606) in the FORT STOCKTON (YATES LOWER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18044District 08Field 32124625Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$2.3 M
Jan 1993 – Sep 1997
Value, last 12 filed months
$524 k
at the published price for each month
Months reported
57
no gaps in the span
Streams
2
oil, casinghead gas

The FORT STOCKTON (YATES LOWER) 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 12 leases and 79 wells, and the rule below applies to all of them.

Discovered
1943-01-25
as the register files it
Field class
Oil and gas
the register's own label
Between wells
933 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 1997-05-09.

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: “AS THE FORT STOCKTON FIELD”

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
NGPA54none——

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
OilDisposition125,884 bbl$2,171,864
Casinghead gasProduction389,916 Mcf$107,873
Total$2,279,737

345,817 Mcf of this lease's gas, across 48 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (63)

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 30.9900, -102.9353. A lease has no coordinate of its own — that point is the mean of its wells, and they span 3.3 miles.

30.99640, -102.93713 · 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
100.0%
63 of 63 wells
With a plug date
38.1%
24 of 63 wells
Median depth
3,450 ft
61 wells filed one
Completion to plug
8.7 years
median over 23 wells

What the state filed about each well

On the RRC proration schedule
63100.0%
A plug date is filed
2438.1%
BothOn the schedule and plugged. Neither fact cancels the other.
2438.1%
NeitherNo plug date, and not on the schedule.
00.0%

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, 61 of 63 wells. Median 3,450 ft, with the middle half between 3,400 and 3,495 ft; the shallowest is 3,000 ft and the deepest 3,620 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, 60 of 63 wells, Aug 1980 – Feb 2024. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1980 – Feb 2024
60 of 63 wells; 3 filed none
Plug dates filed
Nov 1989 – Jul 2024
24 of 63 wells; 39 filed none

Last completion to plug: a median of 8.7 years across the 23 wells that filed both dates, with the middle half between 4.0 years and 21.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

63 wells

42-371330996133,480 ft—Jul 1990Yes
42-37133313721———Yes
42-371333745073,464 ft——Yes
42-371331038173,060 ftFeb 2024—Yes
42-371356148253,600 ftOct 2023Jul 2024Yes
42-371340508243,000 ftOct 2023Jul 2024Yes
42-3713344510103,500 ftJul 2021—Yes
42-371331006143,455 ftJul 2021—Yes
42-371345185143,510 ftJul 2021—Yes
42-3713561514303,600 ftJul 2021—Yes
42-3713347613213,350 ftJul 2021—Yes
42-3713347911273,350 ftJul 2021Sep 2021Yes
42-3713312111253,322 ftJul 2021Sep 2021Yes
42-371328888153,410 ftJul 2021Sep 2021Yes
42-371334789093,410 ftMar 2018—Yes
42-371348085163,500 ftJun 2010Nov 2020Yes
42-371373488273,620 ftFeb 2004—Yes
42-3713335112243,450 ftFeb 2004—Yes
42-371334938233,400 ftJul 2003—Yes
42-3713325413193,400 ftMar 2003Oct 2007Yes
42-371346346213,379 ftFeb 1996—Yes
42-3713325513183,400 ftApr 1993—Yes
42-371352922263,450 ftApr 1988—Yes
42-371336087233,400 ftFeb 1986Nov 1989Yes
42-3713335214203,450 ftNov 1985Nov 2011Yes
42-371355712283,600 ftNov 1985Oct 2011Yes
42-371355683113,600 ftOct 1985—Yes
42-3713343310073,398 ftOct 1985—Yes
42-371332587203,350 ftSep 1985Nov 1989Yes
42-371334948223,500 ftSep 1985Oct 2007Yes
42-371328877173,500 ftSep 1985Sep 2019Yes
42-371352956223,490 ftSep 1985—Yes
42-3713536214293,372 ftJul 1985—Yes
42-371352932273,468 ftMay 1985May 1990Yes
42-3713335512253,402 ftApr 1985—Yes
42-371030663023,400 ftFeb 1985—Yes
42-371030782073,469 ftJun 1984—Yes
42-371348315153,443 ftApr 1984—Yes
42-3713466614273,235 ftMar 1984—Yes
42-371345005093,414 ftDec 1983—Yes
42-371345102233,510 ftDec 1983—Yes
42-371331996173,462 ftJun 1983Nov 1989Yes
42-371340845133,500 ftDec 1982Oct 2002Yes
42-371340466193,425 ftDec 1982—Yes
42-3713335714213,416 ftDec 1981—Yes
42-371334916183,500 ftDec 1981Oct 2007Yes
42-371336095123,500 ftNov 1981Nov 1989Yes
42-3713347716243,400 ftOct 1981—Yes
42-371333142183,495 ftSep 1981—Yes
42-371333738213,450 ftSep 1981—Yes
42-3713344610093,455 ftAug 1981May 1990Yes
42-3713344710083,390 ftJul 1981—Yes
42-3713331615263,380 ftApr 1981Dec 1989Yes
42-371333159083,402 ftMar 1981—Yes
42-371332572173,475 ftJan 1981May 1990Yes
42-371332007193,360 ftDec 1980—Yes
42-371331986163,400 ftDec 1980—Yes
42-371331058193,454 ftNov 1980—Yes
42-3713312014193,500 ftSep 1980—Yes
42-3713310616233,450 ftAug 1980May 1992Yes
42-37133101615—Aug 1980—Yes
42-371331027183,350 ftAug 1980Sep 2019Yes
42-371331048183,475 ftAug 1980—Yes

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 (57)

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

57 months

Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19973,0078,43518.972.31$76,515
Apr 19972,3167,80217.882.08$57,660
Mar 19972,3469,27118.951.94$62,434
Feb 19972,2228,72220.492.21$64,769
Jan 19972,4299,86923.483.54$91,966
Dec 19962,4259,53723.32—$56,551
Nov 19962,6527,93321.97—$58,264
Oct 19962,4137,71823.31—$56,247
Sep 19962,0956,01622.22—$46,551
Aug 19962,0506,32420.26—$41,533
Jul 19961,6405,97119.55—$32,062
Jun 19962,0566,11918.73—$38,509
May 19961,7985,80419.43—$34,935
Apr 19962,4616,67821.51—$52,936
Mar 19962,4816,52919.38—$48,082
Feb 19962,2836,53016.98—$38,765
Jan 19962,3986,91917.07—$40,934
Dec 19952,0036,03117.19—$34,432
Nov 19952,4296,24916.00—$38,864
Oct 19952,4456,66915.43—$37,726
Sep 19952,2617,03316.18—$36,583
Aug 19952,3996,36615.92—$38,192
Jul 19952,5396,95215.24—$38,694
Jun 19952,4696,78016.41—$40,516
May 19952,9876,96717.56—$52,452
Apr 19952,1476,64917.73—$38,066
Mar 19952,8336,58316.44—$46,575
Feb 19952,0906,32116.58—$34,652
Jan 19952,8657,12315.92—$45,611
Dec 19942,4376,81615.03—$36,628
Nov 19942,4007,22315.90—$38,160
Oct 19942,3547,89315.58—$36,675
Sep 19942,7328,18215.29—$41,772
Aug 19942,6469,02216.13—$42,680
Jul 19942,0127,18517.56—$35,331
Jun 19941,6864,83317.09—$28,814
May 19942,0265,28215.88—$32,173
Apr 19941,8354,90614.14—$25,947
Mar 19942,3585,14012.46—$29,381
Feb 19941,0534,60212.50—$13,163
Jan 19942,3435,24912.66—$29,662
Dec 19932,5006,34712.33—$30,825
Nov 19932,8928,42014.49—$41,905
Oct 19932,8309,30515.85—$44,856
Sep 19932,4608,53415.03—$36,974
Aug 19932,9369,29315.66—$45,978
Jul 19932,6579,09815.46—$41,077
Jun 19932,6538,52316.79—$44,544
May 19932,43110,68817.68—$42,980
Apr 19932,1199,15918.05—$38,248
Mar 19932,7449,59618.14—$49,776
Feb 19932,4568,77917.90—$43,962
Jan 19932,7859,94116.93—$47,150

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 1997 — as filed, then multipliedworked
Oil                3,007 bbl  × $ 18.97 =    $57,043
Casinghead gas     8,435 Mcf  × $  2.31 =    $19,472

────────────────────────────────────────────────────
Month total                                  $76,515

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/18044 is the state's own key, not one this site invented.