Permian
The Permian is the highest-producing US oil field, at 4.2 million barrels a day in 2019, with Midland-based Diamondback among its operators.
US Shale Oil Operations · intrinsically safe
Intrinsically Safe Mobile Phone in US Shale Oil Operations
US shale oil comes mainly from the Permian Basin in Texas and New Mexico and the Bakken in North Dakota. Zone 1 work arises at drilling rigs, wellsites, tank batteries, compressor stations and gas gathering. If you are specifying an intrinsically safe mobile phone for US shale oil operations, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
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 topicintrinsically safe
DeviceMobile Phone
RouteSpecification
WhereUS Shale Oil Operations
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for US shale oil operations: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · intrinsically safe
Checklist: intrinsically safe mobile phone for US shale oil operations
| 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 | US shale oil operations: Drilling rigs, Wellsites and tank batteries, Compressor stations | Classified by the site operator |
Product · US Shale Oil Operations
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 US Shale Oil Operations. 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 · US shale oil operations
Working in US shale oil operations: operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
Operators and companies on site
- Chord Energy
- Continental Resources
- Chevron
- Diamondback Energy
Classified areas to expect
- Drilling rigs
- Wellsites and tank batteries
- Compressor stations
- Gas gathering and processing
Local conditions · US shale oil operations
Site conditions at US shale oil operations: what wears and what limits equipment
Bakken
Bakken output rose through horizontal drilling and hydraulic fracturing, with North Dakota and Montana passing 1 million barrels a day in April 2014.
Field notes · US shale oil operations
More about US shale oil operations that matters for portable equipment
US shale oil operations: people and language
About two thirds of the world's active drilling rigs are in the United States and Canada, and many independent operators and contractors have shale expertise, so crews and service firms are plentiful.
US shale oil operations: geography and layout
Tight oil formations in the United States include the Bakken, Niobrara, Barnett and Eagle Ford shales, spread across several states and climates.
US shale oil operations: infrastructure
Tight reservoirs typically need roughly 15 to 20 percent natural gas in the pore space to drive the oil, so oil wells commonly come with associated gas to handle.
US shale oil operations: projects and investment
Tight oil is light crude held in low-permeability formations and is produced with hydraulic fracturing and horizontal wells; at least 4,000 new shale wells came online in 2012 alone.
The term · intrinsically safe
What “intrinsically safe” means for a smartphone
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 US shale oil operations. Shale field crews visit many wellsites and tank batteries, in both hot West Texas and cold North Dakota conditions. An intrinsically safe handheld is designed to be carried into Zone 1 areas for gauging records and photographs. Battery behaviour across that temperature spread should be evaluated, and certification must come first.
The route · specification
Specifying an intrinsically safe mobile phone for US Shale Oil Operations
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 · US Shale Oil Operations
Frequently asked questions
Can we buy an intrinsically safe mobile phone in US Shale Oil Operations 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 intrinsically safe mobile phone in US Shale Oil Operations cost?
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.
What does ‘intrinsically safe’ mean for the IS-04Z1?
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.
Which areas at US shale oil operations would use it?
Likely candidates are drilling rigs, wellsites and tank batteries, compressor stations, gas gathering and processing. 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.
Which shale basins matter most for handset demand?
The Permian dominates, followed by the Eagle Ford and Bakken, which together made up about 93 percent of US tight oil in 2023. Each has a different climate, from hot and dusty West Texas to very cold North Dakota.
Why does the shale industry change demand so quickly?
Activity follows oil prices and drilling schedules, with many independent operators adjusting programs quickly. Suppliers usually need flexible stock and fast service, and buyers should agree lead times in advance.
Do Permian and Bakken operators apply the same equipment rules?
Not necessarily. Producers and field service contractors generally set their own equipment requirements, and the states have separate regulators for oil and gas. The IS-04Z1 has no certificate yet. Confirm requirements with the site operator in each basin.
Related guides
Keep exploring
Other guides for US Shale Oil Operations, other places in United States, and the pages behind them.
Hazardous Area Mobile Phone in US Shale Oil OperationsSame place, different guide
Explosion-Proof Mobile Phone Distributor in US Shale Oil OperationsSame place, different guide
IECEx Mobile Phone in US Shale Oil OperationsSame place, different guide
Rugged Mobile Phone in US Shale Oil OperationsSame place, different guide
Ex-Proof Mobile Phone in US Shale Oil OperationsSame place, different guide
ATEX and IECEx Mobile Phone Distributor in US Shale Oil OperationsSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Texas Oil FieldsElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Baytown RefineryElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in North Dakota BakkenElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in HoustonElsewhere in United States
United States market guideCertification route and regulators
All guides for United StatesEvery route we cover
Certification statusWhat is in progress
Enquiry · US shale oil operations
Ask about the IS-04Z1 for US shale oil operations, 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.
Enquiry · US shale oil operations
Launching Q4 2026
Planning for US Shale Oil Operations?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.