# Image Attributions

Openly-licensed imagery used on drillstrings.com. Each entry lists source, author and license.

- **drill-pipe-3.jpg** — "Drill Pipe.JPG" by Joshua Doubek. CC BY-SA 3.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Drill_Pipe.JPG).
- **drill-collar-2.jpg** — "US Navy 061008-N-4921S-002 Equipment Operator 1st Class, Bryan Anselmi (left) of Copperopolis, Calif., and Construction Electrician 2nd Class, Thomas Lamb of Seattle, Wash., moves a drill collar into position for attachment to.jpg" by U.S. Navy photo by Chief Equipment Operator John Salguero. Public domain. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:US_Navy_061008-N-4921S-002_Equipment_Operator_1st_Class,_Bryan_Anselmi_(left)_of_Copperopolis,_Calif.,_and_Construction_Electrician_2nd_Class,_Thomas_Lamb_of_Seattle,_Wash.,_moves_a_drill_collar_into_position_for_attachment_to.jpg).
- **rig-floor-1.jpg** — "Oseberg drill floor.jpg" by Norsk olje og gass. CC BY-SA 2.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Oseberg_drill_floor.jpg).
- **rig-floor-3.jpg** — "Work on the drill floor at the semi-submersible rig Polar Pioneer.jpg" by Vidar Dons Lindrupsen. CC BY-SA 2.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Work_on_the_drill_floor_at_the_semi-submersible_rig_Polar_Pioneer.jpg).
- **offshore-platform-1.jpg** — "Oil platform P-51 (Brazil).jpg" by Divulgação Petrobras / ABr. CC BY 3.0 br. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Oil_platform_P-51_(Brazil).jpg).
- **offshore-platform-2.jpg** — "Tender and offshore oil rig platform, Louisiana.jpg" by ENERGY.GOV. Public domain. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Tender_and_offshore_oil_rig_platform,_Louisiana.jpg).
- **offshore-platform-3.jpg** — "00 3783 Oil and gas platform in Norway.jpg" by W. Bulach. CC BY-SA 4.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:00_3783_Oil_and_gas_platform_in_Norway.jpg).
- **drilling-crew-1.jpg** — "BLM Alaska Fluid Minerals Section Chief Rob Brumbaugh speaks with contract crew member Zach Sayers inside portable drill rig (42002925102).jpg" by BLM Alaska. Public domain. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:BLM_Alaska_Fluid_Minerals_Section_Chief_Rob_Brumbaugh_speaks_with_contract_crew_member_Zach_Sayers_inside_portable_drill_rig_(42002925102).jpg).
- **wellhead-1.jpg** — "Wellhead Bohrlochkopf.JPG" by HartmannValves. CC BY 3.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Wellhead_Bohrlochkopf.JPG).
- **wellhead-2.jpg** — "PRINOS . D Wellhead Deck (16449454518).jpg" by thintruman from UK. CC BY-SA 2.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:PRINOS_._D_Wellhead_Deck_(16449454518).jpg).
- **wellhead-3.jpg** — "West Kingfish Platform, Wellhead Deck 1982 (16769301865).jpg" by thintruman from UK. CC BY-SA 2.0. Source: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:West_Kingfish_Platform,_Wellhead_Deck_1982_(16769301865).jpg).