Ofinan Energy Procurement Notebookhttps://ofinanenergy.com/blog/Petroleum buying guidesBuying bulk EN590 10ppm diesel: make your first enquiry counthttps://ofinanenergy.com/blog/bulk-en590-10ppm-diesel-supplier-enquiry/https://ofinanenergy.com/blog/bulk-en590-10ppm-diesel-supplier-enquiry/A practical way to brief a bulk diesel supplier on grade, volume, destination and delivery expectations.Fri, 16 Oct 2026 12:00:00 GMTDiesel D2 procurement: translate a product name into a supply briefhttps://ofinanenergy.com/blog/diesel-d2-wholesale-procurement-brief/https://ofinanenergy.com/blog/diesel-d2-wholesale-procurement-brief/Wholesale diesel sourcing becomes easier to discuss when the product designation and operational requirement are both clear.Fri, 16 Oct 2026 12:00:00 GMTJet A-1 fuel sourcing: the questions to settle earlyhttps://ofinanenergy.com/blog/jet-a1-fuel-sourcing-checklist/https://ofinanenergy.com/blog/jet-a1-fuel-sourcing-checklist/Prepare an aviation fuel enquiry around the required specification, delivery location and quality documents.Fri, 16 Oct 2026 12:00:00 GMTJP54 enquiries: why the specification must come before the labelhttps://ofinanenergy.com/blog/jp54-aviation-fuel-specification-questions/https://ofinanenergy.com/blog/jp54-aviation-fuel-specification-questions/A product designation is a starting point for clarification, not a substitute for confirmed aviation fuel documentation.Fri, 16 Oct 2026 12:00:00 GMTEN380 fuel oil enquiries for marine and industrial buyershttps://ofinanenergy.com/blog/en380-fuel-oil-supply-marine-industrial/https://ofinanenergy.com/blog/en380-fuel-oil-supply-marine-industrial/Turn a heavy fuel oil enquiry into a useful discussion by specifying application, grade, location and documentation.Fri, 16 Oct 2026 12:00:00 GMTEN50 fuel oil: build a requirement around the specificationhttps://ofinanenergy.com/blog/en50-fuel-oil-supplier-enquiry/https://ofinanenergy.com/blog/en50-fuel-oil-supplier-enquiry/A useful fuel oil sourcing conversation explains the intended use and asks for precise product confirmation.Fri, 16 Oct 2026 12:00:00 GMTGasoil sourcing for industrial and heating requirementshttps://ofinanenergy.com/blog/gasoil-distribution-industrial-heating-procurement/https://ofinanenergy.com/blog/gasoil-distribution-industrial-heating-procurement/Describe the application and required grade before comparing supply options for gasoil.Fri, 16 Oct 2026 12:00:00 GMTA bulk fuel RFQ checklist for import buyershttps://ofinanenergy.com/blog/bulk-fuel-rfq-checklist-import-buyers/https://ofinanenergy.com/blog/bulk-fuel-rfq-checklist-import-buyers/Seven practical items help a petroleum supply enquiry reach the right conversation faster.Fri, 16 Oct 2026 12:00:00 GMTPetroleum cargo inspection: questions for your supply discussionhttps://ofinanenergy.com/blog/petroleum-cargo-inspection-documents/https://ofinanenergy.com/blog/petroleum-cargo-inspection-documents/Plan the quality-document conversation before treating a product listing as a confirmed shipment.Fri, 16 Oct 2026 12:00:00 GMTSpot cargo or recurring fuel supply: explain the difference in your briefhttps://ofinanenergy.com/blog/spot-term-petroleum-supply-planning/https://ofinanenergy.com/blog/spot-term-petroleum-supply-planning/Tell the trading desk whether your requirement is a single cargo or a continuing procurement conversation.Fri, 16 Oct 2026 12:00:00 GMT