Tengizchevroil is a leading company that produces oil, gas and associated products that fuels the modern economy. Our history is closely interlinked with the rise of an independent Kazakhstan.
TCO maintains a leading position in the field of industrial safety in terms of such standard indicators as lost working days incidents and the rate of reported incidents.

TCO continues to achieve industry-leading safety results in standard industrial safety measurements such as Serious Incidents and Total Recordable Incidents.
The Contractor Health, Environment and Safety Management Process establishes clear accountabilities, ensures active engagement of contractors, and provides a consistent CHESM program to eliminate health, safety and environment (HSE) incidents and injuries involving contractors.
The requirements and activities included in CHESM process are focused on defining TCO expectations regarding contractor HSE performance, the qualification of contractors and the monitoring of contractor performance against expectations.
Contractors involved in activities presenting risks to workforce and process safety are subject to CHESM Qualification to evaluate HSE Management Systems and ensure adequate safeguards are in place and functioning before starting work at TCO Facilities.
TCO's work is guided by two key principles: do it safely or not at all and there is always time to do it right. Every employee of TCO and its Business Partner companies is responsible for making sure that work can be safely started. Each person has the right to temporarily suspend or completely stop any work if unsafe behavior or conditions are observed. The TCO Safe Work Practices Management Group, together with other teams, ensure that Occupational Safety and Health (OSH) guidelines and procedures are continuously implemented and maintained.
Health, Safety and Environment is one of the core values of LLP “Tengizchevroil”. Company aims to be the safest, most efficient oil and gas enterprise that will continue to make the maximum contribution to the economy of Kazakhstan. For this purpose, the company has implemented the so-called CHESM Process (Contractor Health, Environment, Safety Management).
The main purpose of this process is to clearly identify within contracting companies who is responsible for what, ensure that all parties closely cooperate with each other and adhere action plans on Health, Safety and Environment.
Moreover, workplace inspections are carried out for existing contractors. The inspections verify compliance with occupational safety requirements under RoK Law and TCO’s internal regulations. For instance, the availability of required documents for employees, training certificates and personal protective equipment (PPE). Inspection results are entered into a database and a score is given for the inspection.
The CHESM Process is critical to continuous safety monitoring at all TCO facilities where hundreds of contracting companies are working simultaneously. All risk data on necessity of process improvement, manual updates and many other aspects are consolidated into a single database to track safety progress.
Health, Safety and Environment is one of the core values of LLP “Tengizchevroil”. Company aims to be the safest, most efficient oil and gas enterprise that will continue to make the maximum contribution to the economy of Kazakhstan. For this purpose, the company has implemented the so-called CHESM Process (Contractor Health, Environment, Safety Management).
The main purpose of this process is to clearly identify within contracting companies who is responsible for what, ensure that all parties closely cooperate with each other and adhere action plans on Health, Safety and Environment.
Moreover, workplace inspections are carried out for existing contractors. The inspections verify compliance with occupational safety requirements under RoK Law and TCO’s internal regulations. For instance, the availability of required documents for employees, training certificates and personal protective equipment (PPE). Inspection results are entered into a database and a score is given for the inspection.
The CHESM Process is critical to continuous safety monitoring at all TCO facilities where hundreds of contracting companies are working simultaneously. All risk data on necessity of process improvement, manual updates and many other aspects are consolidated into a single database to track safety progress.