Regulation
The Railroad Commission of Texas oversees oil and gas exploration, production and transport, including hydrogen sulphide safety.
The first major Spindletop well was drilled on 10 January 1901, and the East Texas Oil Field, found in 1930, is the largest and most prolific oil reservoir in the contiguous United States. Zone 1 work arises at wellsites, tank batteries, compressor stations and gas plants. If you are specifying a rugged 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.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP65 to IP68 sealing | IP68 design |
| Drop and shock | A stated drop height onto concrete | Specification on request |
| Explosion protection | A separate certificate and marking | 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.
The Railroad Commission of Texas oversees oil and gas exploration, production and transport, including hydrogen sulphide safety.
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.
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.
A rugged phone is built to survive water, dust, drops and rough handling, usually rated by an IP code and a drop specification. Ruggedness is an environmental property: it says nothing about whether a phone may be used where flammable gas or dust is present. That is decided by explosion-protection certification and marking.
The IS-04Z1 combines both: an IP68 sealed rugged build and a design for Zone 1 and Zone 21 (marking target Ex ib IIC T4). The explosion-protection certificates are in progress and none has been issued.
In Texas oil and gas fields. Texas oil fields range from the hot, arid west to the older fields in the east, and drilling activity has shifted west. Dust, heat and rain all arise. IP68 sealing helps with ingress, but it is not explosion protection; that depends on the Ex marking still in certification.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
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.
It is designed to IP68 sealing, with glove-friendly controls. Ruggedness is not explosion protection: that depends on the certificates, which are in progress.
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.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.