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LAMPE, CONWAY & CO. LLC
> PDRT
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 09/30/2009 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 0 | -2,140,947 | 0 | -29,000 | |
| 06/30/2009 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 2,140,947 | -3,572,732 | 29,000 | -902,000 | $0.01 |
| 03/31/2009 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 5,713,679 | 0 | 931,000 | 303,000 | $0.16 |
| 12/31/2008 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 5,713,679 | 0 | 628,000 | -526,160 | $0.11 |
| 09/30/2008 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 5,713,679 | 5,713,679 | 1,154,160 | 1,154,160 | $0.20 |
| 06/30/2008 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 3,336,962 | 3,336,962 | 8,376,000 | 8,376,000 | $2.51 |
| 03/31/2008 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 2,366,444 | 2,366,444 | 4,591,000 | 4,591,000 | $1.94 |
| 12/31/2007 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 2,191,487 | 2,191,487 | 5,654,036 | 5,654,036 | $2.58 |
| 09/30/2007 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 1,734,300 | 1,734,300 | 5,689,000 | 5,689,000 | $3.28 |
| 06/30/2007 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 0 | -1,734,300 | 0 | -7,135,920 | |
| 03/31/2007 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 1,734,300 | 1,734,300 | 7,135,920 | 7,135,920 | $4.11 |
| 12/31/2006 | PARTICLE DRILLING TECHNOLOGIES INC/NV | PDRT | 1,734,300 | 1,734,300 | 7,136,000 | 7,136,000 | $4.11 |
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