Edgar G Obie Airport (S71), Montana
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Edgar G Obie Airport (S71) is a public-use, non-towered field serving Chinook, Montana. Business aviation traffic here is minimal, with FAA TFMSC data showing only a handful of operations per year.
Runways
Edgar G Obie Airport has one paved runway, 08/26, 4,000 ft long and 75 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Edgar G Obie Airport has 100LL available on the field. Fueling is available from 7am to 7pm, daily, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Edgar G Obie Airport does not clear customs. The nearest port of entry is Havre City-County (KHVR), 21 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Edgar G Obie Airport recorded 5 business aviation movements in 2025. Traffic peaks in July and October. Business aviation traffic at S71 is concentrated in the mid-to-late months of the year, with recorded operations in May, July, and October.
Business jet movements, FAA TFMSC count. Peak month July, 2 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Edgar G Obie Airport averages 9.9 days above 90°F in July and 30.7 freeze days in December. July is the warmest month, with average highs of 84.3°F, and January the coldest, at 27.1°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Edgar G Obie Airport has published operating constraints in two categories: runway notes and other notes.
PAPI for runway 26 must be pilot-activated. Medium intensity runway lights for runway 08/26 operate from dawn to dusk via CTAF activation; after dusk, the lights remain continuously on until dawn.
A smoke stack, 226 feet above ground level, is located 1.1 miles from the runway 26 threshold.
For clearance delivery, contact Salt Lake Air Route Traffic Control Center.
Self-service fuel is available by credit card, 24 hours a day, seven days a week.
Source: FAA Chart Supplement.
Nearby airfields
Edgar G Obie Airport has two airfields within 21 NM. The closest is Harlem, 18.99 NM east.
Source: Skystar calculation from official coordinates.
Skystar at S71
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$600.00 catering order at S71.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
The $75 minimum applies below $862.50.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What fuel is available at S71 (Edgar G Obie Airport)?
Edgar G Obie Airport (S71) offers 100LL only, with no Jet A available. Self-service fueling is by credit card and available 24/7, dispensed from a single-family fuel supply at this facility.
Is customs available at S71?
Edgar G Obie Airport has no onsite customs processing. The nearest customs facility is at Havre City-County Airport (KHVR), about 20.54 nautical miles away.
What is the runway length at Edgar G Obie Airport?
Edgar G Obie Airport has a single paved runway, 08/26, measuring 4,000 feet long and 75 feet wide with an asphalt surface. This is also the airport's maximum paved runway length available for operations.