Operators
Operators listed for the Bakken include Continental Resources, Chord Energy, EOG Resources and Hess. Chevron completed its purchase of Hess on 18 July 2025.
The Bakken is a shale oil formation in the Williston Basin of western North Dakota, centred on towns such as Williston and Watford City. Williston sits close to the centre of the Williston Basin, directly above the Bakken Formation, which is among the largest oil fields in the United States. Distribution partners for Bakken, North Dakota (Williston Basin) are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Bakken, North Dakota (Williston Basin) has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Bakken, North Dakota (Williston Basin): Gas gathering and processing, Crude loading facilities, Drilling rigs | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in North Dakota Bakken. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators listed for the Bakken include Continental Resources, Chord Energy, EOG Resources and Hess. Chevron completed its purchase of Hess on 18 July 2025.
The setting is remote, with cold winters. Low-temperature performance and battery life are practical concerns for portable equipment.
Williston Basin International Airport opened in 2019 and Amtrak's Empire Builder stops once daily in each direction, while the area has no fixed-route bus service.
Bakken oil began flowing in the 1950s at Antelope Field, but large-scale growth only followed the discovery of the Parshall Field in 2007.
The city sits at the crossroads of US Highways 2 and 85, near the Missouri and Yellowstone rivers, about 18 miles from Montana and 60 miles from the Canadian border.
Satellite land-cover data show about 46 square kilometres of developed land around Williston in 2024, showing how energy development left a lasting footprint on a rural town.
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Bakken, North Dakota (Williston Basin). Technicians in western North Dakota travel to remote wellsites and tank batteries for gauging, checks and records. A handheld intrinsically safe phone is designed to be carried into those Zone 1 areas. Cold weather affects batteries, so low-temperature handling matters, and certification must be finished before use in classified areas.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Bakken, North Dakota (Williston Basin) yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
Likely candidates are drilling rigs, wellsites and tank batteries, gas gathering and processing, crude loading facilities. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Bakken, North Dakota (Williston Basin).
Williston Basin International Airport opened in 2019 and is the closest airport, usually reached through a larger US hub. Allow for road transfers and winter weather delays, and agree site access in advance.
Many wellpads and processing plants are spread over rural plains, with Williston acting as the main service base. Confirm network coverage, emergency contact procedures and lone-worker policies with the operator, because coverage and response times differ from city sites.
The North Dakota Department of Mineral Resources, Oil and Gas Division oversees oil and gas activity. It does not approve phones. Equipment requirements generally come from operators and field service contractors, and SAMS holds no certificate yet, so ask the relevant operator what it would accept.
More on North Dakota Bakken, and on other places in United States.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.