Maps & data stories
Title work relies on public records. Each piece here turns a public dataset into an interactive map or an illustrated guide that shows how oil and gas wells were drilled, owned and recorded.
New · interactive
Each of 9,356 Alaska wells appears in the year it was spudded, from the Navy's North Slope test wells through Swanson River, Prudhoe Bay and the western fields. The North Slope and Cook Inlet are drawn side by side on one timeline.
Open the map →
Live · interactive
Each of 89,913 Colorado wells appears in the year it was spudded, from the first well near Cañon City in 1862 to horizontal drilling in Weld County.
Open the map →
New · illustrated
A producing well needs land and legal work and field operations, and the two run at the same time. This guide lays out the typical two-to-five-year run as a well log, from leasing and title opinions through permitting, drilling and the first royalty check, and marks where the legal deadlines start.
Read the log →Get an email when the next map or guide goes up.
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