Environment
Fields are remote, with heat in West Texas and cold winters in North Dakota.
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. Zone 1 work arises at drilling rigs, wellsites, tank batteries, compressor stations and gas gathering. Distribution partners for US shale oil operations are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. US shale oil operations has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | US shale oil operations: Compressor stations, Gas gathering and processing, Drilling rigs | Classified by the site operator |

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.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Fields are remote, with heat in West Texas and cold winters in North Dakota.
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.
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.
Private ownership of subsurface mineral rights in the United States makes it easier to lease land for drilling, which has encouraged a large number of independent operators.
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.
The Permian Basin alone is about 250 miles wide and 300 miles long, which shows how widely shale activity is spread.
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In US shale oil operations. Zone 1 areas arise at drilling rigs, wellsites, tank batteries, compressor stations and gas gathering and processing. Operators classify their own sites, while the Railroad Commission of Texas and the North Dakota Department of Mineral Resources oversee oil and gas in their states. SAMS does not classify areas.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for US shale oil operations yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
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.
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.
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted 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.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for US shale oil operations.
North Dakota has deep winter cold, West Texas has heat and dust, and the Gulf Coast side has humidity and hurricanes. Check a device's temperature, dust and water ratings against the specific region and season.
Wellpads, separators, tank batteries and compressors may contain flammable gas or vapour, and the operator defines classified areas. Operations are dispersed, so lone-worker safety and battery life are often as important as classification.
Fields are remote, with heat in West Texas and cold winters in North Dakota. Check the datasheet's temperature range once published, keep spare charged devices in safe areas, and trial the phone in your own climate. IP68 does not change battery behaviour at temperature extremes.
Other guides for US Shale Oil Operations, other places in United States, and the pages behind them.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.