| Country | Pipelines |
| Timor-Leste | void |
| Togo | void |
| Tokelau | void |
| Tonga | void |
| Trinidad and Tobago | condensate 245 km; gas 1,320 km; oil 563 km (2007) |
| Tunisia | gas 2,665 km; oil 1,235 km; refined products 353 km (2007) |
| Turkey | gas 7,511 km; oil 3,636 km (2007) |
| Turkmenistan | gas 6,441 km; oil 1,361 km (2007) |
| Turks and Caicos Islands | void |
| Tuvalu | void |
| Uganda | void |
| Ukraine | gas 33,721 km; oil 4,514 km; refined products 4,211 km (2007) |
| United Arab Emirates | condensate 520 km; gas 2,908 km; liquid petroleum gas 300 km; oil 2,950 km; oil/gas/water 5 km; refined products 156 km (2007) |
| United Kingdom | condensate 567 km; condensate/gas 22 km; gas 18,980 km; liquid petroleum gas 59 km; oil 4,930 km; oil/gas/water 165 km; refined products 4,444 km (2007) |
| United States | petroleum products 244,620 km; natural gas 548,665 km (2006) |
| United States Pacific Island Wildlife Refuges | void |
| Uruguay | gas 257 km; oil 160 km (2007) |
| Uzbekistan | gas 9,725 km; oil 868 km (2007) |
| Vanuatu | void |
| Venezuela | extra heavy crude oil 992 km; gas 5,400 km; oil 7,607 km; refined products 1,650 km; unknown (oil/water) 141 km (2007) |
| Vietnam | condensate/gas 432 km; gas 510 km; oil 49 km; refined products 206 km (2007) |
| Virgin Islands | void |
| Wake Island | void |
| Wallis and Futuna | void |
| West Bank | void |
| Western Sahara | void |
| World | void |
| Yemen | gas 71 km; liquid petroleum gas 22 km; oil 1,309 km (2007) |
| Zambia | oil 771 km (2007) |
| Zimbabwe | refined products 270 km (2007) |