About 150 gallons of red diesel has been stolen from a farm in Horse Moor Drove, Sutton St James.
It happened between 6pm on Wednesday October 8 and 8.30am on Thursday October 9 when four agricultural machines were targeted by thieves.
Meanwhile, police are looking for someone seen trying to enter a house in The Pingle, Billingborough.
A neighbour noticed them trying the door handle at about 2am on Sunday October 12 before the person ran off.
Finally, a vehicle in Cowslip Crescent, Bourne, had its tyres let down between 11.30am and 4pm on Monday October 6.
Anyone with information should call 101.