Key highlights
HMC-4 focuses on developing and publishing industry best practice guidance and data analysis for cargoes transported on vessels and barges. The group collaborates with major industry organisations such as API, OCIMF, inspection companies (TIC - IFIA), Intertanko, EBOTA and terminal operators.
The HMC4A group compiles and analyses crude oil voyage data to benchmark cargo quantity losses during shipment.
The groups meet twice per year. Membership is open to all organisations involved in oil transportation involved with oil cargo quantity and quality.
Last update - September 2026
The last update was September 2026 with temperature data from the 2025 database.
Meetings
- The spring meeting was held in Lisbon, 12-13th May 2026.
- The fall meeting will be held in Houston, 3rd-4th November 2026.
Contact
If you have any questions about the committee please contact [email protected]
Voyage data
Measurements
Using measurements from individual crude oil voyages provided by HMC-4A committee members, measurement differences including Bill of Lading vs Outturn and ship/shore comparisons are calculated annually for the majority of traded grades.
The data is reported to members by grade, load port, discharge port and vessel; focusing on the loss and standard deviation at each stage of the voyage.
Please contact [email protected] if you would like more details about the report and the committee.
Temperatures
Load and discharge temperatures of the crude oil grades are submitted by members; these are presented for information in the table below.
| Grade | Load Average, DegC | Load StDev, DegC | Disch. Average, DegC | Disch. StDev, DegC | Number of records (Load) |
|---|---|---|---|---|---|
| Aasta Hansteen | 11.3 | 1.2 | 11.2 | 2.9 | 4 |
| Abo | 31.4 | 3.9 | 27.7 | 2.4 | 5 |
| Access Western Blend | 15.8 | 4.2 | 46.7 | 13.2 | 6 |
| Agbami | 31.2 | 5.0 | 28.8 | 1.7 | 16 |
| Akpo | 33.0 | 6.6 | 29.3 | 0.6 | 8 |
| Al Shaheen | 39.0 | 3.6 | 37.3 | 3.4 | 35 |
| Alaskan North Slope | 11.2 | 3.5 | 12.0 | 4.4 | 162 |
| Alba | 22.6 | 11.7 | 33.3 | 5.1 | 4 |
| Altamira | 30.0 | 2.9 | 43.5 | 2.8 | 28 |
| Alvheim | 35.7 | 3.1 | 31.5 | 3.7 | 45 |
| Amenam Blend | 31.3 | 2.7 | 29.2 | 2.6 | 9 |
| Amna | 25.7 | 3.9 | 34.4 | 5.6 | 42 |
| Amna/Sirtica | 25.7 | 3.6 | 33.8 | 7.7 | 11 |
| Arabian Extra Light | 41.2 | 5.7 | 29.9 | 8.4 | 59 |
| Arabian Heavy | 33.7 | 7.7 | 31.5 | 6.4 | 32 |
| Arabian Light | 35.4 | 7.8 | 28.7 | 4.1 | 209 |
| Asgard | 19.3 | 2.8 | 18.5 | 2.6 | 33 |
| Atapu | 40.0 | 4.7 | 30.7 | 2.3 | 27 |
| Azeri | 23.7 | 3.4 | 23.6 | 3.6 | 139 |
| Bakken | 20.8 | 6.8 | 12.9 | 6.2 | 140 |
| Balder | 29.7 | 4.0 | 28.2 | 4.0 | 29 |
| Baleine | 36.3 | 1.9 | 29.3 | 5.8 | 23 |
| Banyu Urip | 57.9 | 1.4 | 51.3 | 0.9 | 4 |
| Basrah Heavy | 39.0 | 4.2 | 29.5 | 3.5 | 27 |
| Basrah Medium | 37.7 | 5.4 | 27.7 | 5.0 | 116 |
| Berbigao | 36.9 | 1.2 | 28.6 | 4.0 | 7 |
| Beryl | 20.1 | 2.0 | 18.8 | 3.0 | 11 |
| Bonga | 37.3 | 3.3 | 31.7 | 2.8 | 28 |
| Bonny Light | 29.8 | 1.3 | 28.1 | 2.2 | 25 |
| Bouri | 32.5 | 3.0 | 40.0 | 3.1 | 10 |
| Brass River | 27.8 | 1.6 | 26.3 | 2.4 | 15 |
| Bravo | 37.0 | 7.8 | 40.4 | 10.4 | 10 |
| Brega | 24.1 | 3.6 | 23.7 | 4.2 | 34 |
| Brent Blend | 13.8 | 4.4 | 14.4 | 3.7 | 6 |
| Bu Attifel | 56.6 | 3.6 | 56.6 | 2.1 | 15 |
| Buzios | 35.0 | 4.1 | 29.7 | 2.6 | 85 |
| Cabinda | 32.9 | 3.8 | 27.3 | 2.5 | 14 |
| Captain | 38.6 | 3.5 | 37.5 | 2.3 | 8 |
| Castilla Blend | 36.6 | 1.0 | 33.5 | 2.8 | 18 |
| Catcher | 29.9 | 3.0 | 27.9 | 4.1 | 13 |
| Ceiba | 30.2 | 1.6 | 29.6 | 0.7 | 8 |
| CJ Blend | 33.9 | 4.8 | 29.6 | 2.2 | 20 |
| Clair | 10.6 | 2.6 | 11.5 | 3.0 | 31 |
| Clov | 36.0 | 1.8 | 29.8 | 1.8 | 12 |
| Cold Lake Blend | 16.5 | 3.9 | 20.2 | 10.9 | 4 |
| Coldlake | 22.8 | 8.8 | 22.5 | 6.8 | 47 |
| Condensate | 21.0 | 7.0 | 23.0 | 7.3 | 66 |
| Congo Composite | 38.4 | 7.9 | 37.1 | 6.1 | 9 |
| CPC Blend | 43.8 | 6.4 | 33.4 | 6.9 | 507 |
| Culzean | 17.8 | 2.9 | 29.6 | 3.5 | 11 |
| Dalia | 43.7 | 1.5 | 34.7 | 2.6 | 15 |
| Das Blend | 41.0 | 2.7 | 37.3 | 4.2 | 70 |
| DFC Condensate | 35.3 | 2.7 | 34.4 | 1.8 | 8 |
| Djeno | 40.5 | 3.2 | 32.7 | 0.6 | 8 |
| Doba Blend | 29.2 | 0.4 | 39.3 | 3.9 | 5 |
| Dolphin Condensate | 37.6 | 2.2 | 38.0 | 2.3 | 11 |
| Domestic Sweet Blend | 33.8 | 5.3 | 27.9 | 5.2 | 6 |
| Draugen | 27.3 | 1.2 | 25.4 | 1.1 | 4 |
| Dubai | 33.9 | 2.3 | 37.3 | 0.9 | 9 |
| Dumbarton | 19.9 | 10.4 | 30.5 | 5.5 | 5 |
| Dussafu | 36.5 | 5.1 | 34.9 | 4.8 | 13 |
| Ea Blend | 27.4 | 8.1 | 23.1 | 6.3 | 7 |
| Eagle Ford | 25.4 | 5.1 | 24.9 | 5.9 | 5 |
| Eagle Ford Light | 27.3 | 5.7 | 27.7 | 1.9 | 35 |
| Egina | 38.1 | 2.7 | 32.8 | 3.9 | 6 |
| Ekofisk | 18.9 | 3.7 | 18.3 | 3.8 | 120 |
| El Sharara | 29.8 | 5.1 | 28.0 | 5.4 | 93 |
| Eocene | 30.8 | 6.6 | 27.6 | 5.6 | 24 |
| Erha | 35.9 | 2.7 | 29.4 | 1.2 | 9 |
| Es Sider | 25.9 | 4.2 | 26.9 | 4.3 | 111 |
| Escravos | 32.1 | 2.4 | 28.7 | 1.2 | 33 |
| Escravos Condensate | 32.0 | 1.7 | 28.5 | 2.0 | 10 |
| Flotta Gold | 21.6 | 4.9 | 25.1 | 6.2 | 12 |
| Forcados Blend | 30.5 | 5.1 | 25.1 | 6.0 | 90 |
| Forties Blend | 23.1 | 2.4 | 22.3 | 2.8 | 40 |
| Frade | 36.7 | 11.4 | 30.6 | 7.1 | 6 |
| Geisum | 35.2 | 1.4 | 33.7 | 5.1 | 4 |
| Girassol | 34.1 | 6.0 | 27.2 | 7.4 | 21 |
| Golden Arrowhead | 36.3 | 9.5 | 29.9 | 8.2 | 11 |
| Goliat | 30.8 | 4.4 | 27.0 | 3.8 | 10 |
| Gorgon Condensate | 33.0 | 4.1 | 31.6 | 3.2 | 8 |
| Grane | 11.0 | 2.0 | 11.4 | 2.3 | 94 |
| Gudrun Blend | 19.8 | 3.8 | 19.2 | 3.3 | 13 |
| Gullfaks | 29.8 | 3.0 | 27.7 | 3.0 | 67 |
| Hamaca Blend | 47.8 | 2.2 | 39.1 | 3.6 | 9 |
| Heavy Louisiana Sweet | 24.0 | 3.9 | 23.8 | 4.8 | 81 |
| Hebron | 34.3 | 4.0 | 31.6 | 4.9 | 47 |
| Heidrun | 17.4 | 4.0 | 16.0 | 2.2 | 19 |
| Hibernia | 26.2 | 4.9 | 28.0 | 6.1 | 33 |
| Hibernia/Hebron | 33.0 | 8.0 | 29.9 | 3.1 | 4 |
| Iracema | 31.5 | 2.3 | 28.5 | 2.2 | 5 |
| Isthmus | 31.1 | 1.9 | 29.3 | 2.9 | 67 |
| Itapu | 34.4 | 5.0 | 25.9 | 1.9 | 6 |
| Johan Castberg | 36.7 | 3.0 | 32.2 | 2.7 | 50 |
| Johan Sverdrup | 11.9 | 1.3 | 13.1 | 3.3 | 320 |
| Jones Creek | 24.4 | 5.1 | 27.1 | 10.7 | 18 |
| Jubilee | 32.9 | 4.4 | 30.0 | 3.0 | 13 |
| Karish Blend | 31.5 | 1.9 | 25.9 | 5.9 | 4 |
| Kazakh Export Blend | 17.6 | 7.1 | 13.9 | 4.4 | 31 |
| Kearl | 18.4 | 4.5 | 18.1 | 5.5 | 4 |
| Khafji | 34.2 | 4.6 | 35.4 | 3.5 | 12 |
| Kirkuk | 25.0 | 2.7 | 22.9 | 2.1 | 9 |
| Kissanje | 35.7 | 3.9 | 31.4 | 1.1 | 9 |
| Kole Marine Blend | 26.4 | 10.7 | 26.6 | 3.7 | 9 |
| Kraken | 59.2 | 4.4 | 53.8 | 6.3 | 4 |
| Kutubu | 29.5 | 0.8 | 30.1 | 0.8 | 5 |
| Lancaster | 30.0 | 2.2 | 30.2 | 5.7 | 6 |
| Liza | 41.8 | 5.9 | 36.3 | 5.1 | 26 |
| Lokele | 28.6 | 1.6 | 27.0 | 1.7 | 6 |
| Long Lake Heavy Dilbit Blend | 22.4 | 3.2 | 21.3 | 3.0 | 5 |
| Lucina | 34.5 | 2.0 | 35.5 | 7.4 | 5 |
| Mariner | 42.7 | 4.9 | 41.2 | 7.8 | 18 |
| Marlim | 34.0 | 0.5 | 30.8 | 1.9 | 4 |
| Mars | 25.3 | 4.8 | 22.8 | 5.3 | 19 |
| Martin Linge | 36.2 | 2.8 | 30.1 | 5.0 | 13 |
| Maya | 40.9 | 4.4 | 37.0 | 4.9 | 144 |
| Medanito | 22.5 | 4.6 | 20.6 | 1.4 | 24 |
| Meleck | 30.4 | 1.1 | 31.9 | 3.9 | 17 |
| Mellitah | 25.9 | 4.1 | 23.9 | 4.5 | 60 |
| Merey 16 | 43.3 | 5.5 | 37.5 | 6.4 | 8 |
| Mero | 36.0 | 5.2 | 29.7 | 3.2 | 66 |
| Mixed Sweet Blend | 13.9 | 4.5 | 15.0 | 4.8 | 7 |
| Mizton | 41.5 | 5.0 | 34.2 | 4.9 | 14 |
| Molo | 30.8 | 1.6 | 30.6 | 0.8 | 11 |
| Montara | 30.5 | 1.2 | 30.8 | 1.8 | 5 |
| Murban | 45.4 | 6.7 | 34.5 | 8.3 | 108 |
| Nemba | 35.8 | 3.0 | 29.6 | 1.6 | 12 |
| Nembe | 31.2 | 3.5 | 30.4 | 2.9 | 10 |
| Nile Blend | 41.6 | 4.1 | 53.5 | 10.4 | 13 |
| Njord | 27.0 | 1.9 | 27.7 | 4.8 | 17 |
| Norne | 22.5 | 8.2 | 20.9 | 7.3 | 6 |
| NWS Condensate | 33.5 | 4.5 | 31.5 | 4.4 | 9 |
| Okwuibome Blend | 28.4 | 4.7 | 25.6 | 6.3 | 9 |
| Olmeca | 31.3 | 1.2 | 28.3 | 3.0 | 15 |
| Olombendo | 33.4 | 4.4 | 30.0 | 4.5 | 16 |
| Oman Export | 44.6 | 4.4 | 37.3 | 4.5 | 27 |
| Oseberg | 27.4 | 1.7 | 24.8 | 2.5 | 28 |
| Palanca | 27.0 | 4.5 | 31.3 | 0.5 | 6 |
| Patos Marinza | 58.4 | 3.4 | 58.1 | 2.7 | 23 |
| Payara Gold | 41.5 | 5.6 | 35.7 | 5.3 | 89 |
| Pazflor | 43.8 | 2.1 | 33.0 | 2.2 | 10 |
| Penguins | 25.9 | 3.7 | 24.4 | 3.2 | 10 |
| Peregrino | 60.3 | 4.3 | 59.5 | 5.9 | 19 |
| Pierce | 18.7 | 4.0 | 18.4 | 4.1 | 5 |
| Plutonio | 31.3 | 3.5 | 29.2 | 4.0 | 9 |
| Poseidon | 24.8 | 4.5 | 20.7 | 4.3 | 4 |
| Qatar Land | 32.8 | 9.0 | 36.3 | 3.6 | 7 |
| Qua Iboe | 31.4 | 3.2 | 27.9 | 1.6 | 28 |
| Rabi Blend | 37.9 | 7.4 | 45.1 | 3.0 | 28 |
| Rabi Light | 37.3 | 3.2 | 47.3 | 4.4 | 6 |
| Ratawi | 29.0 | 8.0 | 27.7 | 6.2 | 33 |
| Rhemoura | 22.2 | 6.5 | 27.6 | 5.4 | 5 |
| Saharan Blend | 27.8 | 5.1 | 26.7 | 4.6 | 144 |
| Sangomar | 37.7 | 3.5 | 32.9 | 3.7 | 29 |
| Sangos | 29.7 | 2.0 | 32.7 | 0.3 | 12 |
| Sankofa | 45.5 | 0.4 | 36.5 | 6.4 | 4 |
| Sapinhoa | 33.7 | 1.8 | 28.7 | 1.5 | 10 |
| Sarir/Mesla | 27.7 | 3.0 | 38.2 | 3.6 | 8 |
| Saxi Batuque | 27.8 | 2.8 | 27.8 | 2.1 | 4 |
| Schiehallion | 36.9 | 2.6 | 33.8 | 2.5 | 30 |
| Sepia | 37.1 | 2.6 | 29.8 | 2.2 | 33 |
| Sirtica | 23.4 | 2.9 | 28.1 | 6.5 | 31 |
| Skarv | 20.4 | 4.6 | 18.5 | 4.3 | 7 |
| Snohvit Condensate | 9.2 | 3.1 | 11.6 | 4.7 | 8 |
| South Arne | 25.2 | 1.9 | 23.4 | 2.7 | 16 |
| Southern Green Canyon | 27.5 | 4.6 | 27.8 | 3.6 | 21 |
| Statfjord | 25.6 | 3.8 | 23.3 | 3.8 | 17 |
| Sururu | 34.4 | 1.9 | 28.3 | 2.7 | 12 |
| Synthetic Crude Oil | 18.3 | 4.8 | 21.7 | 11.7 | 31 |
| Tempa Rossa | 40.7 | 3.4 | 40.0 | 3.1 | 16 |
| Ten Blend | 24.1 | 10.0 | 21.1 | 8.2 | 11 |
| Terra Nova | 20.3 | 3.9 | 30.3 | 10.4 | 11 |
| Thunderhorse | 27.9 | 1.7 | 23.2 | 4.7 | 12 |
| Triton | 31.4 | 6.9 | 30.0 | 5.8 | 7 |
| Troll | 11.2 | 2.0 | 14.6 | 1.3 | 6 |
| Tupi | 37.6 | 3.2 | 29.7 | 2.4 | 64 |
| Umm Lulu | 38.6 | 2.2 | 36.5 | 2.7 | 14 |
| Unity Gold | 41.7 | 4.7 | 35.3 | 4.8 | 71 |
| Upper Zakum | 37.8 | 5.3 | 34.3 | 3.6 | 92 |
| Utapate | 30.8 | 0.9 | 35.2 | 7.7 | 6 |
| Vasconia | 35.1 | 1.7 | 33.3 | 1.7 | 39 |
| West Texas Intermediate | 31.8 | 5.6 | 26.4 | 4.5 | 856 |
| West Texas Intermediate Light | 32.2 | 5.0 | 24.4 | 4.6 | 88 |
| Western Canadian Dilbit | 17.2 | 3.6 | 19.4 | 4.8 | 17 |
| Western Desert | 25.1 | 3.4 | 30.2 | 6.7 | 7 |
| Wheatstone Condensate | 27.0 | 4.3 | 26.0 | 3.4 | 12 |
| White Rose | 27.5 | 10.3 | 23.1 | 8.4 | 4 |
| Wytch Farm | 12.5 | 5.5 | 13.7 | 5.5 | 6 |
| Yme | 28.7 | 2.8 | 29.3 | 5.2 | 19 |
| Zafiro | 33.0 | 0.7 | 30.4 | 2.0 | 4 |
| Zarzaitine | 26.7 | 6.4 | 25.7 | 6.0 | 7 |
| Zueitina | 36.4 | 8.9 | 41.3 | 9.4 | 11 |
