South America Offshore Support Vessels Market Size & Share Analysis - Growth Trends and Forecast (2026 - 2031)

South America Offshore Support Vessels Market Trends and Insights

Deepwater Pre-Salt Production Expansion

Brazil’s pre-salt fields support large offshore developments with established geology, infrastructure, and production systems. Petrobras produced more than 3 million barrels per day in 2026, with over 80% coming from pre-salt assets. Petrobras is progressing the P-80, P-82, and P-83 systems for Búzios, and each unit is designed to produce 225,000 barrels of oil per day. Equinor began a 6-well drilling campaign for the Raia project in the Campos Basin in March 2026, with first production targeted for 2028^{[2]Equinor, “Equinor Starts Drilling Major Gas Development in Brazil,” Equinor, equinor.com}. These projects extend the South America offshore support vessels market beyond short-cycle vessel demand because each production unit requires continuing logistics, mooring, and subsea support throughout its operating life, including routine materials movements and intervention work. The operating conditions also favor DP2 and DP3 vessels with deepwater ROV capability, which raises the equipment and financing threshold for new suppliers.

Petrobras Offshore Fleet Renewal Program

Petrobras’ Open Sea Program brings together new vessel construction and long-duration operating contracts. Petrobras signed contracts in December 2024 for 12 new platform supply vessels to be built in Brazil with 40% local content. The contract structure provides 4 years for mobilization and 12 years for operations, giving local yards and vessel owners a longer revenue base. In May 2026, DOF announced contracts for 4 newbuild subsea support vessels that will be built at Navship in Santa Catarina^{[3]DOF Group, “Four Long-Term AHTS Contracts in Brazil,” DOF Group, dof.com}. The South America offshore support vessels market is therefore placing greater weight on operators that can coordinate construction, financing, vessel availability, supplier delivery schedules, and the operational preparation needed before a vessel enters a long-term charter. Starnav’s hybrid vessels use mtu Series 4000 engines, battery systems, HVO fuel capability, and IMO Tier III equipment, showing how technical requirements are becoming part of procurement decisions. 

Subsea Inspection, Maintenance and Repair Backlog

The growing number of offshore production units is increasing the need for inspection, maintenance, and repair work on subsea equipment. Oceaneering announced USD 180 million in Petrobras contracts in August 2025 for work-class ROV services across Brazilian operations^{[4]Oceaneering International, “Oceaneering Announces USD 180 Million of Subsea Robotics Contracts with Petrobras,” Oceaneering International, oceaneering.com}. DOF announced 3 Petrobras contracts in 2025 for more than 4,000 planned inspections in the Santos, Campos, and Espírito Santo basins. The work covers mooring systems, flowlines, risers, and related subsea structures that require regular monitoring. The South America offshore support vessels market benefits because inspection programs use specialized ROV and support vessels under multiyear contracts, which are tied to recurring maintenance requirements rather than to a single drilling or installation campaign. These contracts reduce reliance on short-term spot activity and give operators a steadier base of vessel use.

Offshore Decommissioning Vessel Demand

Brazil’s decommissioning program is creating demand for multi-purpose support vessels, diving support vessels, and other specialized units. Petrobras’ 2025-2029 business plan includes the decommissioning of 10 platforms by 2029. ANP Resolution 817 requires a decommissioning plan to be submitted before offshore facilities are withdrawn from service. The planning requirement allows operators to identify marine logistics and vessel needs earlier in the field closure process. Brazil lacks a domestically flagged heavy-lift crane vessel for removing large topsides, which can limit the availability of suitable assets for major removal work. The South America offshore support vessels market can benefit where owners have crane-equipped, diving, or multi-purpose vessels that match this work and can combine marine logistics with inspection, removal support, and other field closure tasks.

Local-Content Compliance and Brazilian-Flag Constraints

Brazil’s local-content rules add requirements to offshore vessel construction and chartering. Law 15,075 of 2024 and related rules set local-content conditions for maritime support vessels and link some incentives to compliance. The ANTAQ circularization process checks whether a Brazilian-flag vessel is available before foreign tonnage is chartered. Brazil had 390 Brazilian-flagged vessels among 481 active OSVs in February 2026, leaving limited flexibility when specialized demand rises. The South America offshore support vessels market also faces port turnaround, drydock, and crew constraints, particularly when class-docking requirements cluster in the Brazilian fleet and several vessels require the same specialized repair resources during a limited period. These conditions favor established local operators but can delay access to vessels that are needed for specialized assignments.

High Capital Intensity and Financing Dependence

Hybrid vessel newbuilds require large up-front commitments and long-term financing. Petrobras’ procurement model favors charters that can support construction funding over a multi-year operating period. The local-content requirement can increase the cost of sourcing vessel components and construction services in Brazil. Domestic financing costs and the need for legal and tax support further increase the resources needed to submit long-term bids. The South America offshore support vessels market is consequently becoming more favorable to companies with access to capital, established financing relationships, compliant vessels, and the ability to carry construction and mobilization costs before long-term charter revenue begins. This pattern supports consolidation and leaves smaller owners more dependent on legacy vessels and shorter charter terms.

*Our forecasts treat driver/restraint impacts as directional, not additive. The impact forecasts reflect baseline growth, mix effects, and variable interactions.

Segment Analysis

By Vessel Type: AHTS Dominance Narrows as Subsea and Specialty Tonnage Accelerates

AHT/AHTS vessels accounted for 40.4% of the South America offshore support vessels market in 2025. Their leading position reflects the mooring demands of ultra-deepwater FPSOs, which require high-bollard-pull anchor handling at water depths reaching 3,000 meters. DOF’s Skandi Iguaçu was contracted for Petrobras work with more than 350 metric tons of bollard pull. DOF also secured long-term AHTS work for the Skandi Angra, Skandi Paraty, and Skandi Urca. Platform supply vessels remain important because active FPSOs need regular fuel, cargo, and materials supply. The 12 hybrid PSVs ordered for Petrobras work reinforce the need for local supply capacity. Vessel owners with equipment suited to deepwater operations have a clearer route into long-term contracts.

Other Types, including multi-purpose, subsea support, standby, and crew vessels, are the fastest-growing vessel type segment at a 7.8% CAGR through 2031. The South America offshore support vessels market size for this group is being supported by inspection, maintenance, repair, and decommissioning assignments. DOF’s May 2026 awards cover 4 new ROV support vessels for Petrobras work and a 12-year contract term. Oceaneering’s Petrobras contracts also require ROV services for inspection, FPSO hookups, mooring inspections, and pile installations. The category benefits from work that cannot be completed by conventional supply or anchor-handling vessels. ANP decommissioning rules also add advance planning for multi-purpose and diving support vessels. This mix of services gives specialized vessel owners a role in both new production activity and end-of-life field work.

By Application: Oil and Gas Holds Scale While Wind Builds Structural Momentum

Offshore oil and gas held 48.3% of regional revenue in 2025. Petrobras plans to maintain investment in offshore production systems and exploration activity through 2030. Búzios development, the Raia project, and existing pre-salt production require continuing vessel support. This workload covers cargo transport, anchor handling, ROV intervention, inspection, and subsea logistics. Long-term contracts provide greater operating visibility than short-cycle activity. Decommissioning and other service work add further assignments for specialist vessels. This demand base remains the central source of revenue for the regional fleet.

Offshore wind is forecast to expand at an 8.1% CAGR through 2031. Brazil enacted Law 15,097 in January 2025, which created the legal framework for offshore electricity generation. Petrobras’ 18 MW Rio de Janeiro pilot became the first offshore wind project in South America to enter formal environmental licensing. Fugro began geotechnical work for the pilot in April 2026, with final reporting scheduled for 2027. The first vessel opportunities are likely to center on survey and site-investigation work before larger installation requirements emerge. The South America offshore support vessels market is not expected to see material wind-related vessel demand until regulatory steps and project construction progress further.

Geography Analysis

Brazil held 68.5% of regional revenue in 2025. The country had 481 OSVs operating in its waters in February 2026, including 390 Brazilian-flagged vessels. Petrobras’ Búzios projects and existing pre-salt production support vessel demand in the Santos and Campos basins. Equinor’s Raia drilling campaign also adds a separate support requirement in the Campos Basin. Brazilian flag-preference and local-content requirements remain important access conditions for foreign operators.

Argentina is projected to record the region’s highest growth rate at an 8.2% CAGR through 2031. The Vaca Muerta Oil Sur project links Neuquén production to an offshore export terminal at Punta Colorada in Río Negro. Argentina also launched the CAN_200 offshore exploration tender through Decree 590/2026 in July 2026. The development of export infrastructure and exploration acreage expands the country’s offshore activity beyond earlier episodic campaigns. Vessel demand is expected to include construction, subsea installation, and logistics support. The South America offshore support vessels market, therefore, has a second regional demand center that could broaden over the forecast period as export infrastructure, offshore construction activity, and exploration planning create different types of vessel assignments.

Chile and the Rest of South America represent a smaller share of regional activity in 2025. Chile’s Viento Azul floating wind proposal remained in the permitting stage in mid-2026. Uruguay’s offshore wind potential and planned drilling in block OFF-5 may influence future activity in nearby waters. Guyana’s deepwater work can affect availability and charter rates for high-specification AHTS and PSV vessels across the wider region. These markets currently provide optionality rather than comparable volume to Brazil. Exploration results and permitting decisions could alter the regional balance later in the forecast period.