Global Surveys · Energy sector
Oil & Gas Inspection
Independent inspection for petroleum cargo, marine transfers and industrial assets.
Global Surveys helps producers, traders, terminal operators and project teams verify quantities, assess condition and document findings at critical stages of oil and gas operations.
- Cargo & custody transfer
- Quantity verification, sampling and transfer observations.
- Equipment & project quality
- Condition checks, technical inspection and documented findings.
- Defined scope
- Methods and inspection requirements agreed for each assignment.
- Clear reporting
- Findings supported by records, evidence and stated limitations.
Petroleum cargo services
Clarity from loading to delivery.
Quantity differences, contamination concerns and incomplete records can disrupt a shipment. Our oil and gas inspection service supports cargo acceptance, stock control and commercial reconciliation. Assignments can include the activities below, with availability and technical scope confirmed before appointment.
Quantity control
Quantity verification
Tank gauging, ullage and relevant measurement records to establish cargo or stock quantities. Vessel and shore figures can be compared using the agreed calculation basis and available supporting data.
Cargo transfers
Loading & discharge supervision
Observation of agreed transfer stages, with records of timing, cargo handling, seals and visible deviations to support traceability between dispatch and receipt.
Product quality
Sampling & quality coordination
Sampling under an agreed plan, with sample identification, sealing and chain-of-custody records. Required analyses, laboratory arrangements and reporting responsibilities are confirmed when defining the assignment.
Tank readiness
Tank condition & readiness
Visual checks of safely accessible areas and review of available cleaning or previous-cargo records to identify visible residues, contamination concerns and loading-readiness issues.
Marine fuels
Bunker surveys
Fuel quantity checks and review of delivery records to support bunkering transactions or on/off-hire assignments, with relevant observations and differences recorded in the survey report.
Discrepancy review
Cargo discrepancy review
Review of inspection findings, transfer records and available quantity data to identify discrepancies and provide factual evidence for client reconciliation and follow-up.
Quality assessment: visual inspection alone does not establish a product’s chemical quality. Where laboratory testing is required, the laboratory, methods and reporting scope are agreed separately.
Products & locations
An inspection scope built around your operation.
Tell us the product, quantity, transport mode and inspection location. We will review the work required at your vessel, terminal, storage facility or delivery point and confirm the appropriate arrangements.
- Crude oil & condensates
- Cargo quantity, sampling and transfer-related inspection enquiries.
- Refined petroleum products
- Inspection enquiries for diesel, gasoline and fuel oil shipments or stocks.
- Marine fuels
- Bunker quantity, delivery and charter-related survey requirements.
- Gas cargo enquiries
- LPG and other gas-related assignments require a separate technical review of the product, specialist equipment, personnel and site requirements before acceptance.
Equipment & project inspection
Support beyond the cargo.
Oil and gas projects also depend on equipment condition and supplier quality. Related support is available through Global Surveys’ Industrial Services, with the inspection method and acceptance criteria defined for each asset.
| Inspection area | Typical support | Explore the service |
|---|---|---|
| Vendor inspection | Checks during fabrication or before delivery, covering workmanship, condition, documentation and agreed specifications. | |
| Non-destructive testing | Inspection of materials and components using applicable ultrasonic, penetrant, magnetic particle or visual testing methods. | |
| Pressure testing | Testing support for pipes, systems, vessels and components against the pressure-test procedure and criteria agreed for the assignment. | |
| Rig & lifting equipment | Condition and readiness inspections for rig components and lifting equipment, with findings to support maintenance and operational decisions. |
Our approach
Defined scope. Traceable evidence.
Define the assignment
Confirm the product or asset, location, timing, inspection points, applicable requirements and expected deliverables.
Plan the inspection
Review available records and agree methods, access arrangements, site safety requirements and any testing needs.
Inspect & record
Perform the agreed checks and document measurements, samples, observations and any limitations encountered.
Report the findings
Present results and discrepancies clearly, with supporting records and clarification of any follow-up required.
Your inspection record
- Assignment details, scope and inspection references.
- Measurements, calculations and sample records, as applicable.
- Observations, discrepancies and photographs where permitted.
- Methods, supporting documents and inspection limitations.
Methods matched to the work
The inspection plan identifies the applicable methods and acceptance criteria. Depending on the assignment, these may refer to API MPMS, relevant ASTM, ISO or Energy Institute methods, alongside contractual and local requirements. The applicable references are confirmed before work begins.
Why Global Surveys
Practical support for decisions that matter.
Connected inspection services
Bring cargo, marine and industrial inspection needs into one discussion, with a defined scope for each activity.
Clear, usable reporting
Documented findings help your team assess acceptance, investigate differences and plan the next action.
Confidential handling
Client information and inspection records are handled in line with our Compliance Program.
Frequently asked questions
Planning an oil or gas inspection?
What is included in an oil and gas inspection?
The scope depends on the assignment. It may involve petroleum quantity verification, sampling, loading or discharge supervision, bunker surveys, or related equipment inspection. We confirm the activities, methods and reporting requirements before accepting the work.
Can laboratory testing be included?
Where testing is required, the laboratory arrangements, test methods, sample handling and reporting responsibilities are agreed before the assignment. Any required accreditation must cover the specific tests requested and be confirmed for the selected laboratory.
Can you inspect LPG or other gas cargoes?
Send us the product details, location and required activity. Gas assignments need a separate capability and safety review. We will confirm whether the requested work can be accepted and the specialist arrangements it requires.
Where can an inspection be arranged?
Contact us with the country, port or site and proposed dates. Our team will confirm service availability, access requirements and local arrangements for that assignment.
What do you need to prepare a quotation?
Provide the product or equipment description, quantity or asset list, exact location, expected dates and requested checks. Include relevant specifications, contractual inspection requirements and report deadlines where available.
Discuss your assignment
Plan your next inspection with Global Surveys.
Share the details of your shipment, facility or project so we can confirm the scope and prepare a quotation.
Include with your enquiry
- Product, cargo quantity or equipment details.
- Country, port, terminal or project location.
- Expected dates and required inspection scope.
- Specifications and reporting requirements.