| SC 13G | 2014-02-03 | BlackRock Inc. | TESCO CORP | 2,924,034 | 7.5% | EDGAR |
| SC 13G | 2014-01-30 | Bank of New York Mellon Corp | TESCO CORP | 1,989,867 | 5.1% | EDGAR |
| SC 13G/A | 2014-01-06 | ROYCE & ASSOCIATES LLC | TESCO CORP | 1,867,096 | 4.8% | EDGAR |
| SC 13D/A | 2013-11-22 | LRP V Luxembourg Holdings S.a r.l. | TESCO CORP | 5,807,799 | 14.8% | EDGAR |
| SC 13G/A | 2013-01-24 | ROYCE & ASSOCIATES LLC | TESCO CORP | 4,200,558 | 10.8% | EDGAR |
| SC 13G/A | 2012-11-09 | EAGLE ASSET MANAGEMENT INC | TESCO CORP | 305,794 | 0.8% | EDGAR |
| SC 13G/A | 2012-01-23 | ROYCE & ASSOCIATES LLC | TESCO CORP | 4,966,258 | 13.0% | EDGAR |
| SC 13G/A | 2011-06-06 | COLUMBIA WANGER ASSET MANAGEMENT LLC | TESCO CORP | 10 | - | EDGAR |
| SC 13G/A | 2011-02-11 | COLUMBIA WANGER ASSET MANAGEMENT LLC | TESCO CORP | 2,526,076 | 6.6% | EDGAR |
| SC 13G/A | 2011-02-04 | ROYCE & ASSOCIATES LLC | TESCO CORP | 5,104,180 | 13.5% | EDGAR |
| SC 13G | 2011-01-27 | EAGLE ASSET MANAGEMENT INC | TESCO CORP | 2,402,736 | 6.4% | EDGAR |
| SC 13G/A | 2010-02-16 | KEELEY ASSET MANAGEMENT CORP | TESCO CORP | 0 | 0.0% | EDGAR |
| SC 13G/A | 2010-02-16 | KEELEY ASSET MANAGEMENT CORP | TESCO CORP | 0 | 0.0% | EDGAR |
| SC 13G/A | 2010-02-10 | COLUMBIA WANGER ASSET MANAGEMENT LP | TESCO CORP | 2,542,163 | 6.8% | EDGAR |
| SC 13G/A | 2010-02-09 | ROYCE & ASSOCIATES LLC | TESCO CORP | 5,444,705 | 14.5% | EDGAR |
| SC 13D/A | 2010-01-19 | LRP V Luxembourg Holdings S.a r.l. | TESCO CORP | 6,877,799 | 18.3% | EDGAR |
| SC 13D/A | 2009-09-08 | LRP V Luxembourg Holdings S.a r.l. | TESCO CORP | 6,872,399 | 18.3% | EDGAR |
| SC 13D/A | 2009-09-01 | LRP V Luxembourg Holdings S.a r.l. | TESCO CORP | 6,149,480 | 16.4% | EDGAR |
| SC 13D | 2009-07-17 | LRP V Luxembourg Holdings S.a r.l. | TESCO CORP | 5,234,516 | 13.9% | EDGAR |
| SC 13G/A | 2009-07-14 | CENTENNIAL ENERGY PARTNERS LLC | TESCO CORP | 31,300 | 0.0% | EDGAR |