| 2026-07-30 | Presentation | Presentation |
| 2026-07-29 | Press release | Press Release |
| 2026-07-29 | Press release | NPK International Announces Second Quarter 2026 Results Conference Call and Webcast Date |
| 2026-07-28 | Press release | NPK International Appoints New Member to the Board of Directors |
| 2026-07-15 | Press release | Download , NPK International Announces Second Quarter 2026 Results Conference Call and Webcast Date, July 15, 2026, (ope |
| 2026-05-01 | Presentation | Presentation
of Q1 2026, PDF file, (opens in new window) |
| 2026-04-30 | Press release | NPK Reports First Quarter 2026 Results |
| 2026-04-30 | Press release | Press Release
of Q1 2026, PDF file, (opens in new window) |
| 2026-04-28 | Annual report | Annual Report 2025 of 2025 Annual Report, PDF file, (opens in new window) |
| 2026-04-16 | Press release | NPK International Announces First Quarter 2026 Results Conference Call and Webcast Date |
| 2026-04-16 | Press release | NPK International Announces First Quarter 2026 Results Conference Call and Webcast Date |
| 2026-02-26 | Presentation | Presentation Open Event Link, PDF file, February 26, 2026, (opens in new window) |
| 2026-02-25 | Press release | NPK Reports Fourth Quarter 2025 Results |
| 2026-02-25 | Press release | NPK Reports Fourth Quarter 2025 Results |
| 2026-02-12 | Press release | NPK International Announces Fourth Quarter and Full-Year 2025 Results Conference Call and Webcast Date |
| 2026-02-12 | Press release | NPK International Announces Fourth Quarter and Full-Year 2025 Results Conference Call and Webcast Date |
| 2025-11-24 | Press release | NPK Announces Acquisition of Grassform Plant Hire Limited |
| 2025-10-31 | Presentation | Presentation of Q3 2025 Press Release, (opens in new window) |
| 2025-10-20 | Press release | NPK International Announces Third Quarter 2025 Results Conference Call and Webcast Date |
| 2025-08-06 | Presentation | Q2 2025 NPK International Inc. Earnings Conference Call |
| 2025-07-22 | Press release | NPK International Announces Second Quarter 2025 Results Conference Call and Webcast Date |
| 2025-06-23 | Press release | NPK Announces New $150 Million Revolving Credit Facility |
| 2025-05-20 | Press release | MSCI to Change NPK International’s GICS Code to Industrials/Capital Goods |
| 2025-05-02 | Presentation | Presentation |
| 2025-05-01 | Press release | NPK Reports First Quarter 2025 Results |
| 2025-04-17 | Press release | NPK International Announces First Quarter 2025 Results Conference Call and Webcast Date |
| 2025-03-27 | Annual report | Annual Report 2024 of 2024 Annual Report, PDF file, (opens in new window) |
| 2025-03-11 | Press release | NPK International Inc. Appoints New Member to the Board of Directors |
| 2025-02-27 | Presentation | Presentation |
| 2025-02-26 | Press release | Q4 |
| 2024-12-03 | Presentation | Q3 2024 Newpark Resources, Inc. Earnings Conference Call |
| 2024-08-19 | Presentation | Q2 2024 Newpark Resources, Inc. Earnings Conference Call |
| 2024-05-03 | Presentation | Q1 2024 Newpark Resources, Inc. Earnings Conference Call |
| 2024-03-18 | Annual report | Annual Report 2023 of 2023 Annual Report, PDF file, (opens in new window) |
| 2024-02-22 | Presentation | Presentation |
| 2023-11-02 | Presentation | Presentation |
| 2023-08-02 | Presentation | Presentation |
| 2023-05-03 | Presentation | Newpark Resources First Quarter 2023 Earnings Conference Call |
| 2023-03-23 | Annual report | Annual Report 2022 of 2022 Annual Report, PDF file, (opens in new window) |
| 2023-02-17 | Presentation | Presentation |