BBakken SubsurfaceNorth Dakota well index

NDIC file 41081 · API 33-053-10350-00-00

SAPPHIRE 5000 21-31 3B

Operated by OASIS PETROLEUM NORTH AMERICA LLC · McKenzie County, North Dakota

Active (A)Oil and gasSpud 2024

Well facts

Operator
OASIS PETROLEUM NORTH AMERICA LLC
Status
Active (A)
Well type
Oil and gas (OG)
Field
ARNEGARD
Spud date
Total depth
27,025 ft
Legal location
LOT2 Sec 31 T150N R100W
Footages
2,414 ft FNL · 488 ft FWL
County
McKenzie County
NDIC file no.
41081
API no.
33-053-10350-00-00

Location & navigation

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47.76933, -103.53842

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

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Production

17 months reported, Apr 2025 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil159KbblApr ’25 to Aug ’26 · 13 of 17 months known
Peak oil rate868bbl/dAug 2025 · 26,920 bbl in 31 days
Oil, last 12 months132Kbbl12 of 12 months known
Gas–oil ratio, last 12 months1,748scf/bblfirst year 1,557 scf/bbl
Water cut, last 12 months70%first year 69% · 370K bbl water in all
Gas sold, last 12 months89%of gas produced · 22.3K mcf reported flared
05001,000Oil bbl/d239Apr ’25Jun ’25Aug ’25Oct ’25Dec ’25Feb ’26Apr ’26Jun ’26Aug ’26

Early time

First reported month
Apr 2025
Months to peak
5 (Aug 2025)
Peak month rate
868 bbl/d on 31 days
First 3 months, oil
—
First 6 months, oil
27,749 bbl (2 of 6 known)
First 12 months, oil
118,534 bbl (8 of 12 known)
Share of cumulative in year 1
74%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
239 bbl/d
Latest rate as share of peak
27.5%
Uptime, last 12 months
88% of days
Cumulative gas
268K mcf
Cumulative water
370K bbl
Unknown months
4 of 17 (confidential or not in that month's report)
Pools reported
BAKKEN, CONFIDENTIAL
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
8291,2633,04224141,52479%
11,32814,55835,180244721,28576%
21,34431,68745,732307111,48568%
19,22530,17235,329316201,56965%
14,91424,82032,151314811,66468%
12,35624,12726,797284411,95368%
11,61821,47734,288313751,84975%
10,68422,10428,351303562,06973%
8,55117,70920,281312762,07170%
6,31213,35513,192242632,11668%
7,76114,82824,225302591,91176%
7,40515,22917,360312392,05770%

As first reported to NDIC in each month's report (NDIC Monthly Production Reports, Jan 2003 to Aug 2026). Operators amend past months later and the published reports are not updated, so a month can differ from the current record. A blank or missing month is unknown, not zero, and a cumulative over such months is a lower bound; two pools reported in one month are summed. Rates per producing day divide the month's volume by the days reported, so a month reported without producing days has no rate. Gas–oil ratio is gas produced over oil produced; water cut is water over oil plus water. Months from Jan 2003 to Apr 2015 are read from the Division's PDF reports, which print no flared gas and list a well in a unitized pool only inside its unit's total.

Spacing units

Units whose published footprint holds at least 660 ft of this well's surveyed lateral. Allowances are facts extracted from signed NDIC orders, machine-extracted and not human-reviewed.

Nearby wells

Closest published well heads within 3 miles; wells on one pad share a location.

Other published attributes (1)
symbolA-OG

DMR shapefile columns not shown above, unchanged.