Regulation
The Railroad Commission of Texas oversees oil and gas exploration, production and transport, including hydrogen sulphide safety.
Texas Oil Fields · Ex-proof
Ex-Proof Smartphone in Texas Oil Fields
Texas hosts the headquarters of several major oil companies and many of the world's largest oilfield services firms, so decision makers are often close to the field. Zone 1 work arises at wellsites, tank batteries, compressor stations and gas plants. This page explains what to look for in an Ex-proof smartphone for Texas oil and gas fields, 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
WhereTexas Oil Fields
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Texas oil and gas fields: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
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.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for Texas oil and gas fields
| 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 | Texas oil and gas fields: Wellsites and tank batteries, Drilling rigs, Compressor stations | Classified by the site operator |
Product · Texas Oil Fields
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 Texas Oil Fields. 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 · Texas oil and gas fields
Working in Texas oil and gas fields: 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
- Diamondback Energy
- ExxonMobil
Classified areas to expect
- Wellsites and tank batteries
- Drilling rigs
- Compressor stations
- Gas processing plants
Local conditions · Texas oil and gas fields
Conditions in Texas oil and gas fields that affect handheld equipment
Scale
Texas produced about 41 per cent of US crude in 2019 and had 30 refineries holding 31 per cent of US refining capacity in January 2019.
Field notes · Texas oil and gas fields
More about Texas oil and gas fields that matters for portable equipment
Texas oil and gas fields: infrastructure
The Commission keeps about 132 million pages of well history documents, from drilling permits onward, and publishes monthly production data by county.
Texas oil and gas fields: industry on the ground
The Permian Basin of West Texas alone supplies nearly 40 percent of US oil production, which explains why Midland and Odessa dominate equipment demand.
Texas oil and gas fields: industry on the ground
In May 2026 operators reported production from 156,120 oil wells and 84,661 gas wells, with statewide crude output averaging about 4.18 million barrels a day.
Texas oil and gas fields: rules and approvals
The Railroad Commission of Texas regulates the oil and gas industry, gas utilities, pipeline safety and LPG safety, and was created by the legislature in 1891.
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 Texas oil and gas fields. At a Texas wellsite or gas plant, a marking check 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. Hydrogen sulphide is mentioned in Texas oil and gas safety rules, but toxicity is a separate issue from ignition protection.
The route · specification
Specifying an Ex-proof smartphone for Texas Oil Fields
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 · Texas Oil Fields
Frequently asked questions
Can we buy an Ex-proof smartphone in Texas Oil Fields 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 Texas Oil Fields 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.
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 Texas oil and gas fields would use it?
Likely candidates are wellsites and tank batteries, drilling rigs, compressor stations, gas processing plants. 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.
How many oil wells are there in Texas?
Operators reported 156,120 oil wells and 84,661 gas wells in May 2026. That scale means field crews are widely dispersed, so reliable communication and battery life matter as much as location.
Are Texas oilfield conditions the same everywhere?
No, conditions differ widely: the Gulf Coast is humid and hurricane-exposed, West Texas is hot, dry and dusty, and parts of the state see winter frost. Match specifications to the region where the equipment will be used.
Which body regulates oil and gas operations in Texas?
The Railroad Commission of Texas oversees oil and gas exploration, production and transport, including hydrogen sulphide safety. It does not certify phones. Equipment requirements generally come from producers and contractors, and the IS-04Z1 holds no certificate yet. Confirm requirements with the site operator.
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IECEx Mobile Phone in Texas Oil FieldsSame place, different guide
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United States market guideCertification route and regulators
All guides for United StatesEvery route we cover
Certification statusWhat is in progress
Enquiry · Texas oil and gas fields
Ask about the IS-04Z1 for Texas oil and gas fields, United States
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · Texas oil and gas fields
Launching Q4 2026
Planning for Texas Oil Fields?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.