Middlefield Banc Corp. reported unaudited consolidated financial results for the fourth quarter and year ended December 31, 2017. For the quarter, the company reported total interest income and dividend income was $11,564,000 compared to $7,821,000 a year ago. Net interest income was $9,802,000 compared to $6,748,000 a year ago. Income before income taxes was $4,073,000 compared to $2,436,000 a year ago. Net income was $1,660,000 or $0.73 per diluted common share compared to $1,750,000 or $0.73 per basic and diluted common share a year ago. Return on average assets was 0.86% compared to 0.85% a year ago. Return on average equity was 7.72% compared to 9.02% a year ago. For the year, the company reported total interest income and dividend income was $43,995,000 compared to $29,994,000 a year ago. Net interest income was $37,348,000 compared to $25,804,000 a year ago. Income before income taxes was $13,677,000 compared to $8,321,000 a year ago. Net income was $9,455,000 or $3.10 per diluted common share compared to $6,416,000 or $3.03 per diluted common share a year ago. Book value per share as on December 31, 2017 was $37.25 compared to $34.14 as on December 31, 2016. Tangible book value per share as on December 31, 2017 was $31.71 compared to $32.10 as on December 31, 2016. Return on average assets was 0.88% compared to 0.85% a year ago. Return on average equity was 8.52% compared to 9.33% a year ago.