BBakken SubsurfaceNorth Dakota well index

NDIC file 32231 · API 33-025-03059-00-00

ELM 19-18HQ

Operated by DEVON ENERGY WILLISTON, L.L.C. · Dunn County, North Dakota

Active (A)Oil and gasSpud 2018

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
MANDAREE
Spud date
Total depth
21,011 ft
Legal location
SESE Sec 19 T149N R93W
Footages
845 ft FSL · 316 ft FEL
County
Dunn County
NDIC file no.
32231
API no.
33-025-03059-00-00

Location & navigation

Navigate with Google MapsDriving directions to the well headOpen in Google MapsSatellite view of the padOpen in Apple Maps

47.70537, -102.62259

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

See it in 3D

Open in the regional 3D viewerSurveyed well path, operator and production; Bakken-system horizontals onlyBakken Subsurface 3DBasin-wide production playback

Production

101 months reported, Apr 2018 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil408KbblApr ’18 to Aug ’26 · 98 of 101 months known
Peak oil rate989bbl/dSep 2018 · 29,672 bbl in 30 days
Oil, last 12 months15.4Kbbl+16% against the 12 before
Gas–oil ratio, last 12 months5,582scf/bblfirst year 1,464 scf/bbl
Water cut, last 12 months63%first year 45% · 415K bbl water in all
Gas sold, last 12 months97%of gas produced · 414 mcf reported flared
05001,000Oil bbl/d5020192020202120222023202420252026

Early time

First reported month
Apr 2018
Months to peak
6 (Sep 2018)
Peak month rate
989 bbl/d on 30 days
First 3 months, oil
—
First 6 months, oil
46,258 bbl (3 of 6 known)
First 12 months, oil
165,674 bbl (9 of 12 known)
First 24 months, oil
248,186 bbl (21 of 24 known)
Share of cumulative in year 1
41%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
50 bbl/d
Latest rate as share of peak
5.0%
Uptime, last 12 months
95% of days
Cumulative gas
898K mcf
Cumulative water
415K bbl
Unknown months
3 of 101 (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
1,1976,1302,19330405,12165%
9115,1121,70228335,61165%
1,0504,9221,83829364,68864%
1,3745,7192,32131444,16263%
1,0615,5051,77729375,18963%
9825,1321,70527365,22663%
1,2206,0861,88831394,98961%
9385,2921,53227355,64262%
1,1345,6312,12922524,96665%
2,04710,6053,19330685,18161%
1,95212,6013,22031636,45562%
1,54113,2693,20931508,61168%

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.