Narrative:

In cruise at FL330 from ZZZ to phx, received master warning 'left engine oil pressure' with aural warning. Checklist was completed, dispatch was contacted. Nearest suitable airport was las. Per cfm decision, diverted to las. Landed visual in las, no further problems. Emergency was declared, trucks standing by.

Google
 

Original NASA ASRS Text

Title: INFLT ENG SHUTDOWN REQUIRED ON A CL65 WHEN CREW NOTES LOW OIL PRESSURE ON #1 ENG WHEN 100 NM N OF, AND DIVERTING TO, LAS, NV.

Narrative: IN CRUISE AT FL330 FROM ZZZ TO PHX, RECEIVED MASTER WARNING 'L ENG OIL PRESSURE' WITH AURAL WARNING. CHKLIST WAS COMPLETED, DISPATCH WAS CONTACTED. NEAREST SUITABLE ARPT WAS LAS. PER CFM DECISION, DIVERTED TO LAS. LANDED VISUAL IN LAS, NO FURTHER PROBS. EMER WAS DECLARED, TRUCKS STANDING BY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.