PVA is followed with equity research coverage by the analysts listed below.
| Barclays Capital |
Jeffrey Robertson |
| BMO Capital Markets |
Phillip Jungwirth |
| Canaccord Genuity |
John Gerdes |
| Capital One Southcoast |
Richard Tullis |
| Credit Suisse |
Mark Lear |
| Howard Weil |
Brian Corales |
| Jefferies |
Biju Perincheril |
| Johnson Rice |
Welles Fitzpatrick |
| JPMorgan |
Joseph Allman |
| Pritchard Capital |
Stephen Berman |
| RBC Capital Markets |
Scott Hanold |
| Stifel Nicolaus |
Amir Arif |
| SunTrust Robinson Humphrey |
Neal Dingmann |
Please note that any opinions, recommendations or conclusions regarding PVA made by these analysts are theirs alone and do not represent the opinions, recommendations or conclusions of PVA, its management or board of directors. PVA does not, by its reference to the analysts above, imply its endorsement of or concurrence with the opinions, recommendations or conclusions of such analysts.