| 2007-08-06 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $69K |
| 2007-07-27 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $62K |
| 2007-08-31 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $36K |
| 2007-09-07 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $31K |
| 2007-08-16 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $24K |
| 2007-08-17 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $24K |
| 2007-08-16 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $24K |
| 2007-08-20 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $24K |
| 2007-07-25 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $20K |
| 2007-09-07 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $19K |
| 2007-09-07 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $17K |
| 2007-08-31 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $14K |
| 2007-08-16 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $10K |
| 2007-08-17 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $10K |
| 2007-07-25 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $5K |
| 2007-07-25 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $5K |
| 2007-07-25 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $5K |
| 2007-07-25 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $5K |
| 2007-07-25 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $2K |
| 2007-09-07 | Joint reporting: OLIVER ERIC L; SoftVest, LP; Debeck, LLC; SoftVest Management, LP | Buy | $2K |