Replacing the aging Malongo unit, which has been in operation for over 40 years, the new CALM buoy weighs 285 metric tons, with a diameter of 16 meters and a width of 11.7 meters. Manufactured in Dubai, the buoy is currently stored at SONILS’ Heavy Lift Dock, with installation scheduled for late-September or early-October 2025.

“This operation represents more than just a technical achievement — it is living proof of SONILS’s ability to deliver with precision, safety and excellence. The recognition from our clients reflects the competence of our teams and the quality of our infrastructure. We are ready to continue serving Angola and the oil and gas sector with increasingly robust and integrated solutions,” stated Anabela Marcos, Managing Director, SONILS.

As a floating mooring system designed for durability and stability, the buoy ensures the safe and efficient transfer of crude oil and petroleum products between tankers and offshore facilities, contributing to production efficiency at Block 0.

The operation highlights SONILS technical expertise in handling large-scale projects, including the offloading, handling and secure storage of a large and heavy structure; management of specialized quay infrastructure and mobilization of heavy equipment; and effective collaboration with international clients, vessel operators and logistics suppliers. The project was executed under strict compliance with international safety and quality standards.

According to SONILS, the project reinforces the company’s position as Angola’s leading integrated logistics base, trusted by global operators for critical oil and gas operations. The successful delivery of the CALM buoy strengthens SONILS’ reputation as a regional benchmark for complex logistics solutions.

Operated by Chevron, Block 0 is located offshore Cabinda Province in deepwaters. The concession, recently extended until 2050, comprises 21 fields and connects to associated infrastructure including the Angola LNG plant via the Congo River Crossing Pipeline. Chevron, through its Angolan subsidiary Cabinda Gulf Oil Company, holds a 39.2% stake in Block 0, alongside partners Sonangol E&P (41%), TotalEnergies (10%) and Eni (9.8%).