What and where is the NPRA, and how was it established?: NPRA established
Geographic setting
Who and what live on the North Slope?
When, by whom, and how was the NPRA explored?: Early exploration
Geologic and topographic surveys, 1923-26
The Pet-4 exploration program, 1943-53
The 1974-82 exploration of NPR-4/NPRA
Summary of significant events in the history of petroleum exploration in Alaska
What are the geological, geophysical, and geochemical factors considered in petroleum exploration and resource assessment?: Geologic history
Structural elements and stratigraphic sequences
Subsurface geology
How were oil and gas resources estimated?
What were some of the geotechnical, engineering, and environmental considerations in the exploration and development of the NPRA?: Surficial materials
Permafrost
Environmental stipulations and monitoring
Trafficability and movement of supplies and materials
Drillsite construction
How were the cleanup and rehabilitation accomplished?
What is the story of the Barrow gas fields?: The role of the USGS at Barrow
Gas consumption
Gas production
Prospects for supplying future demands
The USGS' accomplishments at Barrow
What is happening with the leasing of NPRA lands?
What is the leasing program?
Summary of the USGS' accomplishments in the NPR-4/NPRA program: Exploration program and hydrocarbon assessment
Cleanup, rehabilitation, and environmental considerations
Operation and maintenance of the Barrow gas fields
Termination of the NPRA program.