Environment
Fields are remote, with heat in West Texas and cold winters in North Dakota.
US Shale Oil Operations · Ex-proof
Ex-Proof Smartphone in US Shale Oil Operations
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. Zone 1 work arises at drilling rigs, wellsites, tank batteries, compressor stations and gas gathering. This page explains what to look for in an Ex-proof smartphone for US shale oil operations, 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 topicEx-proof
DeviceSmartphone
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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for US shale oil operations
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| 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
US shale oil operations at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- ExxonMobil
- Chord Energy
- Continental Resources
- Chevron
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
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.
Field notes · US shale oil operations
More about US shale oil operations that matters for portable equipment
US shale oil operations: industry on the ground
The Permian, Eagle Ford and Bakken together produced about 93 percent of US tight oil in 2023, and US output reached 13.2 million barrels a day.
US shale oil operations: geography and layout
The Permian Basin alone is about 250 miles wide and 300 miles long, which shows how widely shale activity is spread.
US shale oil operations: industry on the ground
The Permian Basin supplied about 46 percent of US domestic oil in 2023, while other tight oil plays accounted for a further 22 percent, based on figures from the US Energy Information Administration and Enverus.
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.
The term · Ex-proof
What “Ex-proof” means for a smartphone
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In US shale oil operations. A marking check at a shale wellsite or gas gathering facility would compare zone, gas group and temperature class with the operator's classification. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, for Zone 1 gas. The operator decides what applies at each pad and facility.
The route · specification
Specifying an Ex-proof smartphone 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 Ex-proof smartphone in US Shale Oil Operations today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does an Ex-proof smartphone 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 Ex marking will the IS-04Z1 carry?
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
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
Related guides for US Shale Oil Operations and for United States.
IECEx Mobile Phone in US Shale Oil OperationsSame place, different guide
Industrial Mobile Phone in US Shale Oil OperationsSame place, different guide
Hazardous Area Mobile Phone Distributor in US Shale Oil OperationsSame place, different guide
ATEX and IECEx Mobile Phone in US Shale Oil OperationsSame place, different guide
Intrinsically Safe Mobile Phone in US Shale Oil OperationsSame place, different guide
Rugged Mobile Phone in US Shale Oil OperationsSame place, different guide
ATEX and IECEx Mobile Phone Distributor in HoustonElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Baytown RefineryElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in LouisianaElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Texas Oil FieldsElsewhere 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?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.