SALEM, Ore. (AP) — Large contributions from timber company executives helped state Rep. Dennis Richardson improve his fundraising in recent weeks.

The Republican nominee for governor said two weeks ago that his campaign raised $350,000 over a one-month period, but his aides declined to disclose the donors.

Campaign finance filings made public this week show a total of $100,000 came from three sisters who own Seneca timber companies — Jody Jones, Becky Jones and Kathy Jones-McCann. Seneca has also paid separately for at least one billboard critical of Kitzhaber.

On Monday, records show, Richardson also took in $50,000 from Freres Timber Inc.

Richardson has significantly trailed Democratic Gov. John Kitzhaber in fundraising. He has yet to report most recent campaign expenditures, so it's not clear how much money he has in the bank.