Upgrades Equity analysts at CIBC World Markets made a series of adjustments to TSX-listed energy stocks in their coverage universe on Thursday. Their changes included: Advantage Energy Ltd.(AAV-T, neutral) to $10 from $9. Average: $9.77.ARC Resources Ltd.(ARX-T, outperformer) to $20 from $18. Average: $19.73.Baytex Energy Corp.(BTE-T, neutral) to $7 from $5. Average: $5.86.Birchcliff Energy Ltd.(BIR-T, neutral) to $9 from $8. Average: $9.77.Canadian Natural Resources Ltd.(CNQ-T, outperformer) to $80 from $67. Average: $70.43.Cenovus Energy Inc.(CVE-T, outperformer) to $28 from $25. Average: $22.74.Crescent Point Energy Corp.(CPG-T, outperformer) to $13 from $10. Average: $10.64.Enerflex Ltd.(EFX-T, neutral) to $10 from $9.50. Average: $11.47.Enerplus Corp.(ERF-T, outperformer) to $20 from $19. Average: $17.81.Ensign Energy Services Inc.(ESI-T, neutral) to $3.25 from $2.75. Average: $2.74.Imperial Oil Ltd.(IMO-T, neutral) to $58 from $50. Average: $56.26.Kelt Exploration Ltd.(KEL-T, outperformer) to $7.50 from $7. Average: $7.45.MEG Energy Corp.(MEG-T, neutral) to $20 from $17. Average: $18.50.NuVista Energy Ltd.(NVA-T, outperformer) to $12 from $10. Average: $11.15.Peyto Exploration & Development Corp.(PEY-T, neutral) to $14.50 from $13.50. Average: $14.15.PrairieSky Royalty Ltd.(PSK-T, neutral) to $24 from $22. Average: $20.02.Precision Drilling Corp.(PD-T, neutral) to $82.50 from $70. Average: $79.73.Tamarack Valley Energy Ltd.(TVE-T, outperformer) to $7 from $6. Average: $6.50.Topaz Energy Corp.(TPZ-T, outperformer) to $23 from $22. Average: $24.25.Tourmaline Oil Corp.(TOU-T, outperformer) to $65 from $60. Average: $65.58.Vermilion Energy Inc.(VET-T, neutral) to $25 from $19. Average: $22.67.Whitecap Resources Inc.(WCP-T, outperformer) to $13 from $11. Average: $12.27 =====