12. Record the following transactions: a. Brock Oil Company incurred costs of $30,000 in preparing a drillsite. b. The contractor was paid $400,000 on a day-rate contract (all intangible). c. Equipment (casing) costs of $75,000 were incurred. d. Costs of $70,000 were incurred in evaluating the well. e. Brock Oil decided to complete the well and incurred costs of $45,000 (perforating and fracturing), $60,000 (cementing), and $100,000 (equipment) in completing the well