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.
Texas is the largest US crude oil producer, with onshore fields concentrated in the Permian Basin in the west and the historic East Texas field. Zone 1 work arises at wellsites, tank batteries, compressor stations and gas plants. If you are specifying an ATEX and IECEx smartphone for Texas oil and gas fields, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
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.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Marking | II 2 G Ex ib IIC T4 on the rating plate | Design target; not yet marked |
| EU-type examination certificate | Notified body number and certificate ID | In progress with TÜV; not issued |
| IECEx certificate of conformity | Number listed on the IECEx online register | In progress; not issued |
| Where it applies | Texas oil and gas fields: Wellsites and tank batteries, Drilling rigs, Compressor stations | Classified by the site operator |

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.
The companies on site and the hazardous-area types a handset is likely to meet there.
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.
Drilling shifted west as eastern fields such as East Texas, discovered in 1930, declined. The Permian Basin now dominates onshore output.
The Commission keeps about 132 million pages of well history documents, from drilling permits onward, and publishes monthly production data by county.
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.
The Permian Basin of West Texas alone supplies nearly 40 percent of US oil production, which explains why Midland and Odessa dominate equipment demand.
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.
ATEX is the European legal framework for equipment used in explosive atmospheres (Directive 2014/34/EU). IECEx is the international certification scheme built on the IEC 60079 standards. Buyers outside Europe often ask for both: an IECEx certificate is the technical evidence most national regimes build on, while ATEX is the legal route into the European market.
For the IS-04Z1 both routes are in progress with TÜV in Germany and neither certificate has been issued. The marking target is II 2 G Ex ib IIC T4: equipment Group II (surface industry), Category 2 (Zone 1 gas), protection concept ib (intrinsic safety), gas group IIC and temperature class T4.
In Texas oil and gas fields. Texas oil and gas work spans the Permian Basin and historic fields such as East Texas, with producers that sometimes work abroad too. A reviewer may look for dual ATEX and IECEx evidence to reuse one record internationally. The IS-04Z1 certification is in progress and no certificate has been issued.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
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.
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.
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.
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.
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.
More on Texas Oil Fields, 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.
Name the site and the operator and we will send what is available before launch.