Tengizchevroil: geography and layout
Tengizchevroil holds the right to develop the Tengiz and Korolevskoye oil fields, which lie in the north-eastern part of the Caspian Sea basin in western Kazakhstan.
Tengizchevroil · IECEx
IECEx Mobile Phone Supplier for Tengizchevroil
Tengizchevroil is a joint venture developing the Tengiz and Korolevskoye fields in the Atyrau region of Kazakhstan. Its shareholders are Chevron (50%), ExxonMobil (25%) and KazMunayGas (20%), with a further minority holder (5%). First oil from its Future Growth Project Third-Generation Plant came in January 2025. Buyers searching for an IECEx mobile phone supplier for Tengizchevroil can take the datasheet and the certification schedule for the IS-04Z1 now; supply follows certification.
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 topicIECEx
DeviceMobile Phone
RouteSupply
WhereTengizchevroil
Short answer. An IECEx mobile phone for Tengizchevroil cannot be bought yet: the SAMS IS-04Z1 is pre-launch (certification in progress, no certificate issued), and the datasheet, certification schedule and safe-area evaluation units are available now.
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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx mobile phone for Tengizchevroil
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | Tengizchevroil: Crude oil production plants (including the Third-Generation Plant), Wellsites and gathering facilities | Classified by the site operator |
Product · Kazakhstan
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 Kazakhstan. 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 organisation · Tengizchevroil
Working with Tengizchevroil LLP (TCO): sites and classified areas
The main sites and the hazardous-area types a portable device is likely to meet at this organisation.
Sites and areas
- Tengiz field, Atyrau region
- Korolevskoye field
Classified areas
- Crude oil production plants (including the Third-Generation Plant)
- Wellsites and gathering facilities
Supplier approval · Tengizchevroil
Becoming an approved supplier to Tengizchevroil
TCO's procurement favours qualified Kazakhstani contractors (over 1,250 contracts awarded to local firms on the Future Growth Project); confirm current supplier requirements with TCO. The Ex certificate and an organisation's own vendor or engineering approval are two separate timelines; SAMS is working towards both and holds neither today.
Field notes · Tengizchevroil
More about Tengizchevroil that matters for portable equipment
Tengizchevroil: who works there
Chevron holds 50%, ExxonMobil 25% and KazMunayGas 20%, with a minority partner holding the remainder, so contractor standards are shaped by international majors as well as the national company.
Tengizchevroil: projects and investment
Tengizchevroil completed the Future Growth Project-Wellhead Pressure Management Project in 2025, designed to add 260,000 barrels a day at full capacity and take total Tengiz output to roughly one million barrels of oil equivalent a day.
Tengizchevroil: industry on the ground
Output reached a record 27.1 million tonnes of oil in 2013 and about 30 million tonnes in 2019, showing a large continuous process operation with extensive classified areas.
The term · IECEx
What “IECEx” means for a smartphone
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In Tengizchevroil. The Tengiz joint venture has international shareholders and contractor teams, so its reviewers are used to IECEx documents. They look for a certificate of conformity and its schedule of conditions. The IS-04Z1 is targeting IECEx, which is in progress, so Tengizchevroil staff should treat it as a planned route and not a held approval.
The route · supply
Sourcing the IS-04Z1 for Tengizchevroil
There is no stock to order for Tengizchevroil yet. The IS-04Z1 is pre-launch, certification is in progress, and supply will run through authorised distributors after the certificates are issued. Procurement teams can prepare now with the datasheet, the certification schedule and a safe-area evaluation.
- 01
Request the datasheet
The technical specification, marking target and conditions of use, sent by email.
- 02
Ask for the certification schedule
Which certificates are in progress, in what order, and what is still to be confirmed.
- 03
Evaluate in a safe area
Evaluation units can be used for connectivity, MDM enrolment and workflow testing outside classified areas.
- 04
Register for launch
Tell us the site, zone, gas group and quantity so the right authorised distributor can contact you.
Questions · Tengizchevroil
Frequently asked questions
Can Tengizchevroil buy the IS-04Z1 today?
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.
What does an IECEx mobile phone for Tengizchevroil cost?
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.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
How does Tengizchevroil approve suppliers?
TCO's procurement favours qualified Kazakhstani contractors (over 1,250 contracts awarded to local firms on the Future Growth Project); confirm current supplier requirements with TCO.
How will SAMS supply Tengizchevroil?
Through authorised distributors once certificates exist. Until then SAMS can send the datasheet and certification schedule and arrange safe-area evaluation units.
How does the climate near the north-eastern Caspian affect phones in the field?
Continental climates around the north Caspian typically bring very cold winters and hot, dusty summers. For handheld devices this means checking operating temperature range, battery behaviour in cold, and ingress protection against dust. Confirm the site's temperature limits with the operator.
Is Tengiz a sour-gas environment that affects mobile device selection?
Tengiz is a large Caspian oil field, and sour hydrocarbon handling is common in such operations, so gas-detection and hazardous-area discipline matter. Whether specific areas are classified Zone 1 or Zone 2 is decided per installation, so confirm each work area's classification with the operator.
Does Tengizchevroil favour local suppliers for equipment like this?
Its procurement is reported to favour qualified Kazakhstani contractors, with many contracts awarded to local firms on its Future Growth Project. A foreign manufacturer would normally work through local partners. Ask the company for current supplier requirements; the IS-04Z1 has no certificate yet and SAMS has appointed no distributor.
Related guides
Keep exploring
Other guides for Tengizchevroil, other places in Kazakhstan, and the pages behind them.
Intrinsically Safe Mobile Phone Supplier for TengizchevroilSame place, different guide
ATEX and IECEx Mobile Phone for TengizchevroilSame place, different guide
Explosion-Proof Mobile Phone for TengizchevroilSame place, different guide
IECEx Mobile Phone for TengizchevroilSame place, different guide
ATEX and IECEx Mobile Phone Supplier for KazMunayGasElsewhere in Kazakhstan
Kazakhstan market guideCertification route and regulators
All guides for KazakhstanEvery route we cover
Certification statusWhat is in progress
Enquiry · Tengizchevroil
Ask about the IS-04Z1 for Tengizchevroil, Kazakhstan
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 · Tengizchevroil
Launching Q4 2026
Planning for Tengizchevroil?
Name the site and the operator and we will send what is available before launch.