MANKINS & WILLIAMS

Operated by A & B OIL (P-5 172) in the WARD, SOUTH field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7243District 08Field 95138001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$164 k
Jan 1993 – Jul 2007
Value, last 12 filed months
$4 k
at the published price for each month
Months reported
175
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 206 leases and 1,363 wells, and the rule below applies to all of them.

Discovered
1938-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
330 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 1982-11-01.

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: OP. 5 ACRE DIAG. 750

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
OilDisposition8,058 bbl$162,361
Casinghead gasProduction588 Mcf$1,551
Total$163,912

192 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 (4)

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 31.3667, -102.9749. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.36680, -102.97464 · 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%
4 of 4 wells
With a plug date
100.0%
4 of 4 wells
Median depth
2,550 ft
3 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
4100.0%
A plug date is filed
4100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
4100.0%
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 2,460 and 2,550 ft, median 2,550 ft, over the 3 wells that filed a depth.

Plug dates filed
May 1983 – Jul 2007
4 of 4 wells

4 wells

42-4750264722,550 ftJul 2007Yes
42-4750264832,460 ftMay 1983Yes
42-4750264942,550 ftMay 1983Yes
42-475026531Jul 2007Yes

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 (175)

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

175 months

Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20071059.617.81$60
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 200668060.085.04$4,085
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050450.377.15$29
Feb 2005168445.226.31$7,622
Jan 20050443.166.32$25
Dec 20040439.866.75$27
Nov 20040445.286.33$25
Oct 20040449.706.52$26
Sep 20040443.245.28$21
Aug 20040442.375.55$22
Jul 20041438.286.08$63
Jun 20040436.106.43$26
May 2004169437.486.49$6,360
Apr 20040434.475.86$23
Mar 20040434.365.53$22
Feb 20040432.455.51$22
Jan 20040432.036.30$25
Dec 20030430.266.30$25
Nov 20030428.804.60$18
Oct 20030428.174.76$19
Sep 20030426.314.75$19
Aug 2003167429.765.13$4,990
Jul 20030429.415.17$21
Jun 20030428.565.98$24
May 20030426.595.97$24
Apr 20030426.675.41$22
Mar 2003176431.146.10$5,505
Feb 20030433.487.93$32
Jan 20030430.315.58$22
Dec 20020426.914.85$19
Nov 2002169424.664.14$4,184
Oct 20020426.464.23$17
Sep 20020427.443.64$15
Aug 20020425.963.16$13
Jul 2002172424.583.06$4,240
Jun 20020423.733.34$13
May 20020424.663.58$14
Apr 20020423.653.51$14
Mar 2002163422.003.10$3,598
Feb 20020418.222.38$10
Jan 20020417.172.38$10
Dec 20010416.932.36$9
Nov 2001172418.072.41$3,118
Oct 20010419.782.53$10
Sep 20010424.262.25$9
Aug 20010424.873.05$12
Jul 20010423.933.20$13
Jun 20010424.563.82$15
May 20010425.524.31$17
Apr 20010424.685.34$21
Mar 20010424.545.38$22
Feb 2001164427.755.77$4,574
Jan 20010427.478.40$34
Dec 20000426.889.12$36
Nov 20000432.215.66$23
Oct 2000159431.235.15$4,986
Sep 20000431.875.19$21
Aug 20000429.644.54$18
Jul 2000157428.534.09$4,496
Jun 20000429.304.40$18
May 20000427.263.68$15
Apr 2000169424.513.12$4,155
Mar 20000428.422.86$11
Feb 20000427.622.73$11
Jan 20000425.272.48$10
Dec 1999168424.282.42$4,089
Nov 19990423.192.43$10
Oct 19990420.982.80$11
Sep 1999155421.752.62$3,382
Aug 19990419.262.88$12
Jul 19990417.892.37$9
Jun 1999152415.942.36$2,432
May 19990415.792.32$9
Apr 19990415.102.21$9
Mar 199997412.471.84$1,217
Feb 1999049.981.82$7
Jan 1999169410.381.90$1,762
Dec 1998049.201.77$7
Nov 19980410.892.19$9
Oct 1998154412.421.97$1,921
Sep 19980412.592.08$8
Aug 19980411.301.91$8
Jul 19980411.742.24$9
Jun 1998147411.242.24$1,661
May 19980412.622.21$9
Apr 1998140413.042.51$1,836
Mar 19980412.802.31$9
Feb 1998152413.952.30$2,130
Jan 19980414.702.15$9
Dec 19970416.322.41$10
Nov 19970418.193.09$12
Oct 1997132419.253.15$2,554
Sep 19970417.742.95$12
Aug 1997152417.862.55$2,725
Jul 19970417.582.25$9
Jun 19970417.242.26$9
May 1997133418.972.31$2,532
Apr 19970417.882.08$8
Mar 1997161418.951.94$3,059
Feb 19970420.492.21$9
Jan 19970423.483.54$14
Dec 1996152423.32$3,545
Nov 19960421.97$0
Oct 1996166423.31$3,869
Sep 19960422.22$0
Aug 1996166420.26$3,363
Jul 19960419.55$0
Jun 1996166418.73$3,109
May 1996152419.43$2,953
Apr 19965421.51$108
Mar 1996166419.38$3,217
Feb 199629416.98$492
Jan 1996173417.07$2,953
Dec 1995181417.19$3,111
Nov 19950416.00$0
Oct 1995173415.43$2,669
Sep 1995196416.18$3,171
Aug 19954415.92$64
Jul 1995166415.24$2,530
Jun 199514416.41$230
May 19959417.56$158
Apr 1995146417.73$2,589
Mar 19956416.44$99
Feb 1995157416.58$2,603
Jan 19953415.92$48
Dec 1994160415.03$2,405
Nov 199412415.90$191
Oct 1994169415.58$2,633
Sep 19941415.29$15
Aug 19940416.13$0
Jul 19946417.56$105
Jun 1994154417.09$2,632
May 19944415.88$64
Apr 1994159414.14$2,248
Mar 199413412.46$162
Feb 1994171412.50$2,138
Jan 19944412.66$51
Dec 1993184412.33$2,269
Nov 19934414.49$58
Oct 1993134415.85$2,124
Sep 19930415.03$0
Aug 1993153415.66$2,396
Jul 19930415.46$0
Jun 1993170416.79$2,854
May 19930417.68$0
Apr 1993172418.05$3,105
Mar 19930418.14$0
Feb 1993171417.90$3,061
Jan 19930416.93$0

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.

Apr 2007 — as filed, then multipliedworked
Oil                    1 bbl  × $ 59.61 =        $60
Casinghead gas         0 Mcf  × $  7.81 =         $0

────────────────────────────────────────────────────
Month total                                      $60

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/7243 is the state's own key, not one this site invented.