EOG Resources撤销第三次Pearsall页岩测试许可

EOG Resources 的最新油井与 Formentera Partners 的油井相结合,可将新油田的面积扩大到 70 平方英里。


EOG Resources已撤销在南德克萨斯州进行第三次 Pearsall 页岩测试的许可证,这将使与邻近的Formentera Partners合并后的潜在石油窗口面积 达到约 70 平方英里。

根据德克萨斯州铁路委员会 (RRC) 的最新数据,德比西 #1H 计划位于私人控股的福门特拉岛计划进行的两个新的皮尔斯尔测试地点西南约 5 英里处,位于福门特拉岛前两个测试地点以西约 8 英里处,均位于弗里奥县。

到目前为止,福门特拉岛一直将重点放在弗里奥县东南部,并认为已经绘制了皮尔斯尔油窗上倾角地图,该地层通常产气。

此外,预计新的油田将拥有更长的水平段,并在岩石上进行现代化、高强度的压裂作业,从而实现经济效益。

与此同时,EOG 已将重点放在弗里奥西南部,但尚未公开其意图。

截至发稿时,该公司尚未回应 Hart Energy 就迄今为止租赁的土地总面积或关闭的 Burns Ranch #1H 的调查结果(即其最新的 Pearsall 测试)发表评论的请求。

EOG 最新的 Pearsall 测试井 Derby 井距离 Burns Ranch #1H 约 7 英里,EOG 于去年夏天对该井进行了钻探并完成了钻探,但在 RRC 记录中却讳莫如深,将其列为“封闭式生产商”。没有提供 IP 或其他数据。

不过,EOG 确实将其列入了 RRC,作为气井,而不是油井。

皮尔索尔权利

早白垩世的皮尔萨尔 (Pearsall) 位于约 10,000 英尺处,晚白垩世的鹰福特 (Eagle Ford) 位于约 7,000 英尺处,奥斯汀白垩 (Austin Chalk) 位于约 6,500 英尺处。

EOG 的 Derby West #1H 使 Pearsall 测试井总数达到 9 口,其中包括两口已完工并上线的 Formentera 井;两口 5 月份正在开发的井;另外两口已获许可的井;一口位于 McMullen 县西北部的 EOG 上线井;以及一口已完工但已关闭的井。

Derby 井将与Trinity Operating尚未钻探的三条 Derby North 水平井平行行驶,但 Trinity Operating 已获得许可,将在 2020 年在 Briscoe Ranch-Eagle Ford 油田钻探最高达 8,000 英尺的深度。

除 Eagle Ford 以外,私营企业 Trinity 还在俄克拉荷马州的 Arkoma 盆地和 Haynesville 开展业务,总计拥有 5,000 多口油井,2022 年平均日产量为 163,000 桶油当量/天。

与此同时,EOG 位于计划中的 Derby West 油井西南方向的 Burns Ranch #1H 井位于Texas American Resources 的Eagle Ford 生产商 Burns Ranch T #132H 井的下方,而后者位于上方的 Briscoe Ranch-Eagle Ford 油田。

EOG 的租赁权拥有皮尔斯尔 (Pearsall) 的权利,而 该地区的主要运营商Texas American没有。Texas American 土地高级副总裁 Troy Gieselman去年夏天在 Hart Energy 的突发新闻报道中介绍了EOG 的 Burns Ranch #1H 计划。

不过,德克萨斯美国公司拥有 9,000 英亩土地,皮尔斯尔公司拥有该土地的使用权,该土地与 EOG 租赁权相邻。“所以我们希望他们能挖出一口好井,”吉泽尔曼当时说。

德克萨斯美国公司拥有 EOG 租赁权之上的 Eagle Ford 正下方 Buda 河基部的权利。

“令人心碎的页岩”

根据 RRC 的数据,福门特拉岛的两座 Pearsall 野猫井于 1 月份投产,截至 4 月份,在投产后的前 3.5 个月内,共计从 3.24 英里的水平井中产出了 137,000 桶石油。

到 2025 年,这些油井的产量将占印第奥油罐-皮尔斯尔油田全部石油产量的 99.6%。

印第奥坦克斯-皮尔斯尔页岩油田曾被称为“令人心碎的页岩”,是德克萨斯州唯一的皮尔斯尔页岩油田。

自 1993 年 1 月以来,该油田共生产了 836,000 桶石油和 663,000 桶凝析油,这是 RRC 拥有按需数字生产记录的最早日期。

该油田首次发现石油(而非凝析油或天然气)是 2012 年由卡博特石油天然气公司(现为科特拉能源公司的一部分)发现的

福门特拉岛从 1 月份开始的产量已经占到该油田自 1993 年以来 150 万桶液体总产量的 9%。

该气田南部气窗过去曾钻探过一些井。自1993年以来,该气田已产出310亿立方英尺天然气和套管头气。

福门特拉岛又有四口井

自从前两口皮尔萨尔 (Pearsall) 油井投产以来,福门特拉岛目前正在钻探另外两口井,即 Hooey-STX #N731H 和 Sendero-STX #S731H,这两口井位于 1981 年建成的封闭式垂直白垩井 Moore #1 下方。

该公司计划建设另一个双井平台——STX #N731H 和 #S731H——将位于 1982 年封堵的垂直 Austin Chalk 井 WW McKinley #A-1 下方。

弗里奥县目前唯一在线的另一口皮尔斯尔油井是马拉松石油公司于 2014 年建造的惠特利杜博斯 1 号油井 ,现在归福门特拉岛的皮尔斯尔合作伙伴 Britanco LLC 所有。

麦克马伦试验

EOG 的首次 Indio Tanks-Pearsall 测试,Moonlight #22H,是在麦克马伦县的西北角,位于其多井 Eagleville-Eagle Ford 1 油田开发项目之一的下方。

据 RRC 称,Moonlight 油田于 2023 年 4 月投产,截至今年 4 月已生产了 48,930 桶凝析油和 8.59 亿立方英尺天然气。

首月平均产量为361桶/日;2025年4月平均产量为25桶/日。天然气产量从290万立方英尺/日下降至68.5万立方英尺/日。

皮尔斯尔(Pearsall)地区最好的石油生产商是BlackBrush Oil & Gas公司于2012年投产的Pals Ranch #11H,该油田位于其Pals Ranch #13H油田下方,后者位于布达(Buda)上部。#11H油田投产28个月,共产油11.6万桶。

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EOG Resources Pulls Permit for Third Pearsall Shale Test

EOG Resources’ newest well, combined with those by Formentera Partners, could take delineation of the new oil play to 70 sq miles.


EOG Resources has pulled a permit for a third Pearsall shale test in South Texas that would take the potential oil window’s combined delineation with neighbor Formentera Partners to roughly 70 sq miles.

Derby West #1H is planned for about 5 miles southwest of where privately held Formentera plans two new Pearsall tests and about 8 miles west of Formentera’s first two tests, all in Frio County, according to new Texas Railroad Commission (RRC) data.

To date, Formentera has focused on southeastern Frio County where it believes it has mapped a Pearsall oil window updip of where the formation has typically produced gas.

In addition, its expecting longer laterals and modern, high-intensity frac jobs on the rock to make the new play economic.

Meanwhile, EOG has focused on southwestern Frio with intentions it has not yet made public.

It did not respond by press time to a Hart Energy request for comment on total land leased to date or findings from its shut-in Burns Ranch #1H, its most recent Pearsall test.

EOG’s newest Pearsall test, the Derby well, is a roughly 7-mile step-out from the Burns Ranch #1H, which EOG drilled and completed last summer but tight-holed it in RRC records, listing it as a “shut-in producer.” No IP or other data was provided.

EOG did list it with the RRC, though, as a gas, rather than oil, well.

Pearsall rights

The Early Cretaceous’ Pearsall is at about 10,000 ft, underlying the Late Cretaceous’ Eagle Ford at about 7,000 ft and the Austin Chalk at about 6,500 ft.

EOG’s Derby West #1H brings the total Pearsall-test well count to nine, consisting of two Formentera wells completed and online; two underway in May; two more permitted; one EOG well online in northwestern McMullen County; and one that is completed but shut-in.

The Derby will travel parallel to three Derby North horizontals Trinity Operating has not yet drilled, but pulled permits for in 2020 for up to 8,000 ft in the Briscoe Ranch-Eagle Ford Field.

In addition to the Eagle Ford, privately held Trinity operates in Oklahoma’s Arkoma Basin and in the Haynesville, totaling more than 5,000 wells and 2022 average daily production of 163,000 boe/d.

Meanwhile, EOG’s Burns Ranch #1H southwest of the planned Derby West well travels underneath Texas American Resources’ Eagle Ford producer, Burns Ranch T #132H, which is landed in the overlying Briscoe Ranch-Eagle Ford Field.

EOG’s lease has Pearsall rights where Texas American, the leading operator in the area, doesn’t, Troy Gieselman, Texas American’s senior vice president of land, told Hart Energy in its breaking-news report last summer about EOG’s Burns Ranch #1H plan.

Texas American has 9,000 acres with Pearsall rights adjacent to the EOG leasehold, though. “So we’re hoping they make a great well,” Gieselman said at the time.

Overlying the EOG leasehold, Texas American has rights to the base of the Buda immediately under the Eagle Ford.

‘Heartbreak shale’

Formentera’s two Pearsall wildcats that came online in January have produced 137,000 bbl of oil combined in their first 3.5 months online through April from a total of 3.24 miles of lateral, according to RRC data.

The wells’ production is 99.6% of all Indio Tanks-Pearsall Field oil output in 2025.

Known as the “heartbreak shale” in the past, Indio Tanks-Pearsall is Texas’ only Pearsall shale field.

It has made a total of 836,000 bbl of oil and 663,000 bbl of condensate since January 1993, the oldest date for which the RRC has on-demand digital production records.

The field’s first oil discovery—rather than condensate or gas—was made in 2012 by Cabot Oil & Gas, which is now part of Coterra Energy.

Formentera’s production beginning in January already represents 9% of the field’s total 1.5 MMbbl of liquids production since 1993.

Wells were drilled in the past in the field’s southerly gas window. It’s made 31 Bcf of gas and casinghead gas since 1993.

Four more Formentera wells

Since bringing its first two oily Pearsall wells online, Formentera is currently drilling two more—the Hooey-STX #N731H and Sendero-STX #S731H—which travel under a 1981-vintage, plugged, vertical Chalk well, Moore #1.

It plans another two-well pad—Roper STX #N731H and #S731H—which will travel under a 1982, plugged, vertical Austin Chalk well, W.W. McKinley #A-1.

The only other Pearsall oil well currently online in Frio County is the Whitley Dubose #1H that Marathon Oil made in 2014 and is now owned by Formentera’s Pearsall partner, Britanco LLC.

McMullen test

EOG’s first Indio Tanks-Pearsall test, Moonlight #22H, was in the northwestern corner of McMullen County, underneath one of its multi-well Eagleville-Eagle Ford 1 Field developments.

Brought online in April 2023, the Moonlight has produced 48,930 bbl of condensate and 859 MMcf of gas through this past April, according to the RRC.

First-month production averaged 361 bbl/d; April 2025 production averaged 25 bbl/d. Gas output declined from 2.9 MMcf/d to 685,000 cf/d.

The Pearsall’s best oil producer was BlackBrush Oil & Gas’ 2012-minted Pals Ranch #11H, which travels under its Pals Ranch #13H that is landed in the overlying Buda. The #11H produced 116,000 bbl of oil in its 28 months online.

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