Refineries & Producers
Product verification, pre-loading checks, and documentation support before refined products leave the gate.
- Pre-loading quality confirmation
- Grade and specification verification
- Certification documentation
Commodity Trading Companies
Spec confirmation, independent inspection, and documentation that protects your position before and after each deal.
- Pre-purchase quality confirmation
- Inspection attendance coordination
- Chain-of-custody records
Tank Farms & Storage Operators
Inventory verification, dip test coordination, and stock reconciliation for onshore and offshore terminals.
- Dip test and tank gauging
- Opening and closing stock surveys
- Interface and water detection
Refineries & Crude Oil Producers
Refineries and upstream producers need confidence that their products leave the facility meeting specification — and that the documentation supporting each transfer is complete, accurate, and defensible. Tzero Labs coordinates pre-loading quality verification, inspection attendance, and certification support across EN590 diesel, crude oil, naphtha, jet fuel, and other refined products.
Common challenges we address
- Delays in securing inspection attendance before loading windows close
- Slow laboratory reporting that holds up cargo release
- Documentation gaps that create disputes with buyers
- Coordination across multiple inspection agencies at different ports
How we help
- Confirm product specification requirements with all parties
- Arrange inspection attendance and sampling at the loading terminal
- Coordinate sample dispatch to recognized labs (SGS, Intertek, BV, etc.)
- Assemble and verify all pre-shipping documentation
Commodity Trading Companies
In commodity trading, a deal is only as good as the documentation and quality assurance behind it. Tzero Labs helps trading companies confirm product specification before purchase, coordinate independent inspection through recognized agencies, and build a complete chain-of-custody record that protects their position in any dispute.
Products traded we support
- EN590 diesel and gasoil
- Jet A-1 aviation fuel
- D6 residual fuel oil
- Marine fuel — VLSFO and HSFO
- Crude oil (all grades)
- Renewable diesel and HVO
- LNG, LPG, and petrochemical feedstocks
Notes
We coordinate through recognized agencies and do not conduct laboratory testing ourselves. All inspection and testing is performed by qualified, independent inspection companies.
Tank Farms & Storage Terminals
Storage operators manage high-value inventory in a regulated environment where measurement errors and documentation gaps have real financial consequences. Tzero Labs supports dip test coordination, opening and closing stock surveys, and inventory reconciliation at onshore and offshore petroleum storage facilities.
- Dip test attendance and tank gauging coordination
- Opening and closing inventory surveys
- Water dip and product interface detection
- Quantity reconciliation support between transfers
Measurement Services
- Ullage and dip tape surveys
- Temperature corrections
- Volume-to-mass conversions
- Composite and spot sampling
Documentation
- Stock survey reports
- Transfer documents
- Discrepancy reports
- Custody transfer records
Shipping & Marine Companies
Marine operators need clean documentation, accurate cargo figures, and inspection support that keeps their vessels on schedule. Tzero Labs coordinates cargo inspection attendance at load and discharge ports, supports ship-shore safety checks, and ensures sampling and documentation are completed without unnecessary delays to the vessel.
- Ship-shore compatibility and safety check support
- Cargo sampling at load port and during discharge
- Outturn surveys and quantity verification
- Marine fuel quality checks (VLSFO, HSFO, MGO)
Marine cargo support
Shipping operators face strict timelines. Every hour of delay costs money. Tzero Labs works to ensure inspection attendance is arranged ahead of arrival, lab samples are dispatched immediately after collection, and documents are ready before the vessel sails.
Products we cover
- Crude oil tanker cargoes
- Refined products — diesel, jet fuel, naphtha
- Marine bunker fuels (VLSFO, HSFO, MGO)
- LNG and LPG cargoes (coordination support)
Logistics Providers
Petroleum logistics operators — pipeline companies, road tanker operators, and terminal service providers — rely on accurate product handover documentation and quality verification at custody transfer points. Tzero Labs supports inspection coordination and documentation at each stage of the logistics chain to reduce disputes and maintain product integrity across movements.
- Custody transfer inspection at delivery points
- Product identity verification across movements
- Documentation for regulatory and commercial compliance
- Sampling and quality checks at intermediate terminals
Engagement approach
Each logistics engagement starts with a scoping discussion to understand the product, movement route, and documentation requirements. We then arrange the appropriate inspection and testing coordination through recognized agencies at the relevant points in the chain.
Buyers & Sellers
Whether you are purchasing a parcel of EN590 diesel or selling a cargo of crude oil, independent quality verification protects your interest. Buyers need assurance that what arrives matches what was ordered. Sellers need documentation that demonstrates product integrity at the point of delivery. Tzero Labs bridges that gap with coordinated inspection, testing, and documentation support.
- Pre-purchase product quality verification
- Independent inspection attendance at seller's facility
- Laboratory testing coordination for specification confirmation
- Complete transaction documentation package
What buyers get
Confidence that the product meets spec before money moves. Independent, third-party verified quality documentation that stands up in any commercial or legal context.
What sellers get
A clean quality record that removes doubt, accelerates payment, and reduces the risk of disputes after delivery. Documentation prepared by recognized inspection agencies coordinates through Tzero Labs.
Industry service matrix
How Tzero Labs supports each segment of the petroleum supply chain.
| Segment | Typical operations | Primary value we add | Key challenge addressed |
|---|---|---|---|
| Refineries | Pre-loading inspections, product release | Pre-shipment quality confirmation | Inspection access and documentation gaps |
| Trading Companies | Buy/sell transactions, multi-port cargoes | Independent spec verification | Protecting position in quality disputes |
| Tank Farms | Storage, custody transfer, inventory | Dip test and stock survey coordination | Measurement accuracy and reconciliation |
| Shipping Companies | Load port, discharge port, bunker ops | Cargo inspection and sampling | Delays to vessel operations |
| Logistics Providers | Pipeline, road tanker, terminal transfers | Custody transfer documentation | Product integrity across movements |
| Buyers & Sellers | Physical commodity transactions | Independent quality and quantity verification | Disputes, payment delays, specification risk |