FORRISTALL -B-

Operated by CHESAPEAKE OPERATING, INC. (P-5 147715) in the TIPPETT, W. (WOLFCAMP 5050) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7560District 7CField 90196777Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$695 k
Jan 1993 – Dec 2007
Value, last 12 filed months
$15 k
at the published price for each month
Months reported
180
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 28 leases and 36 wells, and the rule below applies to all of them.

Discovered
1967-08-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres.

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: ALLOCATION FORMULA EFFECTIVE 01/01/95.

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
OilDisposition8,996 bbl$264,757
Casinghead gasProduction112,119 Mcf$430,329
Total$695,086

17,478 Mcf of this lease's gas, across 19 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 (3)

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 31.0029, -102.1162. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.00830, -102.11395 · centre of 1 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%
3 of 3 wells
With a plug date
33.3%
1 of 3 wells
Median depth
6,255 ft
2 wells filed one
Completion to plug
12.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
3100.0%
A plug date is filed
133.3%
BothOn the schedule and plugged. Neither fact cancels the other.
133.3%
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

Between 6,200 and 6,310 ft, median 6,255 ft, over the 2 wells that filed a depth.

Completions filed
May 1972 – May 2007
3 of 3 wells
Plug dates filed
Sep 2002
1 of 3 wells; 2 filed none

Last completion to plug: a median of 12.3 years across the 1 well that filed both dates, with the middle half between 12.3 years and 12.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-1053024796,200 ftMay 2007Yes
42-1050253426,310 ftMay 1990Sep 2002Yes
42-105808334May 1972Yes

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 (180)

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

180 months

Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 200731058.747.85$1,821
Apr 20071725559.617.81$3,004
Mar 20073333456.927.30$4,317
Feb 200720055.108.22$1,102
Jan 20078015850.306.73$5,087
Dec 20067645456.656.92$7,446
Nov 20067454054.207.62$8,124
Oct 20064130154.906.01$4,061
Sep 20062643060.085.04$3,728
Aug 20066548968.717.34$8,055
Jul 20063752669.376.34$5,903
Jun 20066954866.286.38$8,072
May 20066863066.016.42$8,536
Apr 20063443564.397.36$5,391
Mar 20068268056.707.08$9,466
Feb 20066475357.597.75$9,522
Jan 20066980560.598.93$11,372
Dec 20056852054.9413.42$10,712
Nov 20056856454.6910.59$9,691
Oct 20056551558.3413.80$10,897
Sep 20053159461.4512.08$9,080
Aug 20053282761.519.80$10,070
Jul 20053271155.697.84$7,359
Jun 20053579152.337.38$7,670
May 20053589245.226.65$7,516
Apr 20051673049.207.36$6,160
Mar 20053763650.377.15$6,414
Feb 20054370745.226.31$6,407
Jan 2005841,00743.166.32$9,992
Dec 2004871,00639.866.75$10,259
Nov 2004801,02345.286.33$10,098
Oct 20044299649.706.52$8,576
Sep 20048288843.245.28$8,238
Aug 20048171442.375.55$7,395
Jul 2004781,07438.286.08$9,520
Jun 20049198236.106.43$9,602
May 20049088037.486.49$9,088
Apr 200413269334.475.86$8,610
Mar 20049097134.365.53$8,462
Feb 20045362432.455.51$5,158
Jan 20045382132.036.30$6,870
Dec 20037393030.266.30$8,070
Nov 20037778128.804.60$5,806
Oct 20037772928.174.76$5,639
Sep 20035757126.314.75$4,212
Aug 20031459129.765.13$3,448
Jul 20034567429.415.17$4,809
Jun 20033069028.565.98$4,985
May 20031574826.595.97$4,866
Apr 20032872326.675.41$4,656
Mar 20033072031.146.10$5,323
Feb 20034365633.487.93$6,639
Jan 20034481730.315.58$5,894
Dec 20021677726.914.85$4,202
Nov 20023370124.664.14$3,714
Oct 20023267326.464.23$3,693
Sep 20023679127.443.64$3,863
Aug 20022982225.963.16$3,354
Jul 20026277424.583.06$3,894
Jun 20025177323.733.34$3,791
May 20025577424.663.58$4,130
Apr 20025474123.653.51$3,880
Mar 20025681122.003.10$3,748
Feb 20028471818.222.38$3,236
Jan 20025363917.172.38$2,428
Dec 20018080316.932.36$3,253
Nov 20016165718.072.41$2,683
Oct 20016681419.782.53$3,364
Sep 200111477824.262.25$4,517
Aug 20019193524.873.05$5,118
Jul 20017985223.933.20$4,614
Jun 20018783324.563.82$5,322
May 200113177825.524.31$6,694
Apr 20018586024.685.34$6,686
Mar 20019384124.545.38$6,804
Feb 200113963327.755.77$7,508
Jan 200113662527.478.40$8,985
Dec 20009181926.889.12$9,917
Nov 20009164732.215.66$6,592
Oct 20008796131.235.15$7,662
Sep 20009088831.875.19$7,474
Aug 20009989929.644.54$7,016
Jul 2000971,47828.534.09$8,812
Jun 20001511,28729.304.40$10,084
May 20001071,10727.263.68$6,990
Apr 20001121,12024.513.12$6,235
Mar 20002581,46228.422.86$11,513
Feb 2000461,00527.622.73$4,011
Jan 20009398125.272.48$4,783
Dec 19994793824.282.42$3,415
Nov 1999731,14223.192.43$4,472
Oct 1999551,11720.982.80$4,286
Sep 1999901,05221.752.62$4,713
Aug 1999551,11119.262.88$4,254
Jul 19996674517.892.37$2,948
Jun 19993699515.942.36$2,924
May 19998268115.792.32$2,875
Apr 19993785815.102.21$2,453
Mar 199911193012.471.84$3,094
Feb 1999356819.981.82$1,587
Jan 19999577510.381.90$2,459
Dec 199867369.201.77$680
Nov 1998423110.892.19$525
Oct 1998273312.421.97$400
Sep 1998283112.592.08$417
Aug 1998403611.301.91$521
Jul 1998543111.742.24$703
Jun 1998273611.242.24$384
May 1998793512.622.21$1,074
Apr 19984577013.042.51$2,516
Mar 19986575812.802.31$2,583
Feb 19983763313.952.30$1,972
Jan 1998391,15814.702.15$3,069
Dec 1997311,36816.322.41$3,804
Nov 1997341,11918.193.09$4,074
Oct 19975099219.253.15$4,087
Sep 19976076817.742.95$3,334
Aug 19974188117.862.55$2,983
Jul 19977092017.582.25$3,298
Jun 19975293617.242.26$3,009
May 1997821,49818.972.31$5,014
Apr 1997811,75217.882.08$5,097
Mar 1997761,43318.951.94$4,219
Feb 1997801,12820.492.21$4,127
Jan 1997831,04223.483.54$5,637
Dec 19967755923.32$1,796
Nov 19962551021.97$549
Oct 19967378623.31$1,702
Sep 19964576522.22$1,000
Aug 19963994220.26$790
Jul 1996791,19919.55$1,544
Jun 1996531,11118.73$993
May 1996491,22219.43$952
Apr 1996521,07721.51$1,119
Mar 199610092519.38$1,938
Feb 19965078316.98$849
Jan 19964392217.07$734
Dec 19955591617.19$945
Nov 19953881716.00$608
Oct 1995431,00615.43$663
Sep 1995471,10416.18$760
Aug 1995381,23715.92$605
Jul 1995401,15915.24$610
Jun 1995643816.41$98
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19933016.93$51

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 2007 — as filed, then multipliedworked
Oil                   31 bbl  × $ 58.74 =     $1,821
Casinghead gas         0 Mcf  × $  7.85 =         $0

────────────────────────────────────────────────────
Month total                                   $1,821

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. 7C/O/7560 is the state's own key, not one this site invented.