Environment
The setting is remote, with cold winters. Low-temperature performance and battery life are practical concerns for portable equipment.
North Dakota Bakken · IECEx
IECEx Mobile Phone in North Dakota Bakken
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. Zone 1 work arises at drilling rigs, wellsites, tank batteries and gas gathering facilities. This page explains what to look for in an IECEx mobile phone for Bakken, North Dakota (Williston Basin), and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicIECEx
DeviceMobile Phone
RouteSpecification
WhereNorth Dakota Bakken
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Bakken, North Dakota (Williston Basin): pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx mobile phone for Bakken, North Dakota (Williston Basin)
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | Bakken, North Dakota (Williston Basin): Drilling rigs, Wellsites and tank batteries, Gas gathering and processing | Classified by the site operator |
Product · North Dakota Bakken
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
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.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Bakken, North Dakota (Williston Basin)
Bakken, North Dakota (Williston Basin): where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Continental Resources
- Chord Energy
- Chevron (via Hess)
- EOG Resources
Classified areas to expect
- Drilling rigs
- Wellsites and tank batteries
- Gas gathering and processing
- Crude loading facilities
Local conditions · Bakken, North Dakota (Williston Basin)
What Bakken, North Dakota (Williston Basin) means for portable equipment
History
Oil was discovered in the Williston Basin in 1951. Horizontal drilling and hydraulic fracturing lifted output, and North Dakota and Montana together passed 1 million barrels a day in April 2014.
Field notes · Bakken, North Dakota (Williston Basin)
More about Bakken, North Dakota (Williston Basin) that matters for portable equipment
Bakken, North Dakota (Williston Basin): geography and layout
The Bakken is relatively thin, no more than 250 feet, with low permeability, so better knowledge of where the resource lies has translated directly into higher output.
Bakken, North Dakota (Williston Basin): people and language
Williston, founded in 1887, had 29,160 residents in 2020, its population nearly doubling between 2010 and 2020 because of the oil boom.
Bakken, North Dakota (Williston Basin): climate and equipment wear
Williston has a cold semi-arid climate with a January mean near 11.5 degrees Fahrenheit, about 39 days a year with lows of zero or below, and extremes from minus 50 to 110 degrees.
Bakken, North Dakota (Williston Basin): industry on the ground
North Dakota crude oil production passed 1.0 million barrels a day, driven by the Bakken and Three Forks formations of the Williston Basin in North Dakota and eastern Montana.
The term · IECEx
What “IECEx” means for a smartphone
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In Bakken, North Dakota (Williston Basin). Operators in the Williston Basin are largely US producers, so IECEx is most relevant where a visiting contractor or an international parent brings that scheme. A certificate of conformity and schedule of conditions would be the documents to check. SAMS has not been issued these for the IS-04Z1, which is pre-launch.
The route · specification
Specifying an IECEx mobile phone for North Dakota Bakken
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · North Dakota Bakken
Frequently asked questions
Can we buy an IECEx mobile phone in North Dakota Bakken today?
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.
What does an IECEx mobile phone in North Dakota Bakken cost?
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Which areas at Bakken, North Dakota (Williston Basin) would use it?
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.
Is intrinsically safe the same as explosion proof?
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
What equipment issues are specific to oil production wellpads?
Wellpads and associated tank and compressor areas can contain flammable gas and vapour, and the operator defines classified areas and approvals. Always ask for the site's area classification and equipment policy before entering.
How cold does it get for Bakken fieldwork, and what does that mean for handsets?
Williston records a January mean around 11.5 degrees Fahrenheit and several days a year at minus 20 or lower. Check a handset's low-temperature operating range and battery performance in the cold, and keep spare batteries warm inside clothing.
How does North Dakota winter affect a handheld in the field?
The Bakken is remote with cold winters, so low-temperature performance and battery life are practical concerns for portable equipment. Check the datasheet's operating range once published, keep spare charged devices in a safe, warm area, and trial the phone in your own conditions. Confirm limits with the site operator.
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United States market guideCertification route and regulators
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Certification statusWhat is in progress
Enquiry · Bakken, North Dakota (Williston Basin)
Ask about the IS-04Z1 for Bakken, North Dakota (Williston Basin), United States
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Enquiry · Bakken, North Dakota (Williston Basin)
Launching Q4 2026
Planning for North Dakota Bakken?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.