This activity involves the transportation of crude oil, liquefied petroleum gas (LPG), and petrochemical products from production sites to refineries, distribution terminals, or end customers. It utilizes various types of tanker vessels, such as:

1. Oil Tankers for crude oil.
2. LPG Tankers for liquefied gases like propane and butane.
3. Chemical Tankers for petrochemical products such as methanol or ethylene.

The routes taken are international or domestic sea routes, depending on logistical needs. This is done in compliance with environmental and safety regulations, including MARPOL (prevention of pollution from ships) and SOLAS (safety of life at sea).

In an effort to meet the increasing demand from the oil and petrochemical industry, this service is facilitated by the subsidiary PT PCS Internasional (PCSI), which handles the transportation of oil and chemical cargo in existing markets (including crude oil, methanol, FAME, and caustic soda) and aims to capture a larger market share.