Wash all canning jars, lids, and equipment thoroughly with hot soapy water.
Sterilize jars and rings in boiling water (I use the water bath canning for the jars, and a small pot for the rings). Keep them in the hot water until needed.
Add the lids to a saucepan of simmering water to keep warm.
Peel all of the oranges, and separate them into sections. To reduce any bitter flavor, it’s recommended that you remove excess pith (the white stuff) with a sharp paring knife.
Prepare the extra-light syrup by combining the water and sugar in a medium saucepan, whisking well. Bring to a boil over medium-high heat, then reduce to low-medium to keep warm while you pack the jars.
Pack the orange segments into the pint jars, just up to the neck of the jar.
Ladle in the hot syrup, leaving ½” of headspace.
Use a de-bubbler or clean butter knife to remove any excess air bubbles from the jar, then add more hot syrup (if needed) to maintain the ½” of headspace.
Repeat until all of the oranges are packed or all of the jars have been used up.
Wipe the jar rims with a clean towel or a vinegar-dampened clean cloth.
Add a warm lid to each jar, then add a lid ring until fingertip tight.
Transfer the prepared jars to the canner and add a lid. Bring to a boil over high heat.
Once the water has returned to a rapid boil, start the time.
Process for 10 minutes in the boiling water bath canner.
Once the time is up, turn off the heat, remove the lid, and remove the canner from the heating element. Allow the jars to rest for 5 minutes in the water.
Once the 5 minutes are up, remove the jars and place them in a location where they can go undisturbed for at least 24 hours.
After 24 hours, check the seals and remove the canning rings. Wipe down the jars and label them. Any jars that have not been sealed should be moved to the fridge to be eaten right away.