Accepted Manuscript Novel statistical forecasting models for crude oil price, gas price, and interest rate based on meta-heuristic bat algorithm Meysam Naderi, Ehsan Khamehchi, Behrooz Karimi PII: S0920-4105(18)30786-1 DOI: 10.1016/j.petrol.2018.09.031 Reference: PETROL 5294 To appear in: Journal of Petroleum Science and Engineering Received Date: 17 April 2018 Revised Date: 2 July 2018 Accepted Date: 10 September 2018 Please cite this article as: Naderi, M., Khamehchi, E., Karimi, B., Novel statistical forecasting models for crude oil price, gas price, and interest rate based on meta-heuristic bat algorithm, Journal of Petroleum Science and Engineering (2018), doi: 10.1016/j.petrol.2018.09.031. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.