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Outfall sewer contractors, sea disposal
Underwater pipeline inspection services
Underwater structure inspection services
Cleaning contractors, submerged piles and underwater structures
Anti-corrosion services, offshore and underwater structures
Offshore crane services
Oil and gas industry safety consultants
Oil and gas prospecting consultants
Oil rig installation and movement supervision consultants
Water injection consultants, oil well
Onshore pipeline consultants
Offshore engineering consultants
Oilfield engineering, design services
Groundwater development consultants
Training courses, oil and gas extraction and exploration
Rock formation and core analysis services
Surveys, geophysical exploration
Chemical analysis and sampling services, oil and petroleum industry
Technical research bureaux for oil well drilling equipment
Crude oil (petroleum) transport services, pipeline
Refined petroleum transport services, pipeline
Oil and petroleum transportation consultants
Wireline services, oil well
Natural gas transport services, pipeline
Exploration services, oil and gas
Directional drilling contractors, oil well
Horizontal drilling contractors, oil and gas well
Turbo-drilling contractors, oil well
Coring contractors, oil and gas exploration
Drilling fluid/mud engineering services, oilfield
Casing contractors, oilfield
Well testing contractors, oil and gas
Plugging and abandoning contractors, oil and gas wells
Workover contractors, oil and gas well
Mud logging services, oil well
Measurement services, oil and gas industry
Quality and quantity control services, oil industry
Inspection and maintenance services, oil industry
Drill pipe and casing testing services, oilfield
Technical support services, oil industry
Fire-fighting contractors, oilfield
Underground natural gas storage operators
Offshore pipeline consultants
Condensers for petroleum refineries
Crude oil stabilisation plant
Ovens, coil type, crude oil heating
Oil distillation plant, petroleum refinery
Cracking plant, catalytic
Cracking plant, thermal
Cracking plant, steam
Cracking plant equipment, petroleum refinery
Alkylation plant, petroleum refinery
Desulphurisation plant, petroleum refinery
Desalination plant, petroleum refinery
Distillation columns, petroleum refinery
Distillation tower parts and accessories, petroleum refinery
Hydroforming/hydrofining plant, refinery
Reforming plant, catalytic
Reforming plant, steam
Reforming plant, thermal
Isomerisation plant
Polymerisation plant, petroleum refinery
Wax purification and extraction plant, petroleum refinery
Mixers and blenders, in-line, petroleum refinery
Temperature indicators and recorders for petroleum refineries
Flame arresters, oil refinery
De-coking equipment, refinery flues
Refinery and petrochemical industry plant, complete
Dynamic positioning systems, ship and rig
Wave motion compensators for offshore applications
Offshore heat shields for flare stacks
Flare igniters, oil well
Underwater pipeline equipment and accessories
Ignition equipment, underwater blasting
Pipe laying barge equipment
Riser angle sensing systems, offshore drilling
Storage equipment and accessories, underwater, oil and gas industry
High pressure water jetting/blasting equipment, offshore
Blow-out preventers, oil rig, offshore and sub-sea
Control equipment, gas and/or oil production, offshore
Mooring structures, offshore (buoys, articulated columns, fixed towers)
Control services for offshore oil and gas platform mooring or anchoring lines
Offshore terminals and moorings management and maintenance
Gas-petroleum separators, petroleum refinery
Oil-water separators, petroleum refinery
Pressure regulators, petroleum refinery
Oil and gas exploration consultants
Sea transport consultants