Natural Resource Partners has raised $200 million in sale of senior unsecured notes with another $100 million of senior notes to be sold later in 2011. The natural resource company intends to use the proceeds to fund future acquisitions, including the remaining balance of the Hillsboro acquisition.

The $75 million notes sold in the first part carry a coupon rate of 4.73%, and are due to mature on Dec. 1, 2023. The $125 million notes and $50 million notes sold carry a coupon rate of 5.03%, and are due to mature on Dec. 1, 2026. The $50 million notes sold in the fourth part carry a coupon rate of 5.18%, and are due to mature on Dec. 1, 2026. Click here for the release from PR Newswire.