what does this mean with kn the first well drilledIsis is...

what does this mean with kn the first well drilled
Isis is attributing some "contingent" as well as "prospective" resources to the Nyuni prospects which lie close to Nyuni Island. This results from their review of the Nyuni-1 well drilled by Aminex and partners at Nyuni Island in 2003/4. Nyuni-1 recorded several gas-bearing intervals in Aptian/Albian sands but operational difficulties at the time meant that these were never tested and the well was subsequently suspended, although not plugged and abandoned in case re-entry was ever required. Isis therefore attributes the same resource category to these Nyuni-1 reservoirs as to the successfully-tested discovery at Kiliwani North.