石油企业提高投资利用效果的有效途径和方法耿岩一、近几年石油企业投资效果的基本分析近几年石油工业的投资主要用在西部的勘探开发上，对东部主力（老）油田的投资相对少了许多。而西部的投资效果同东部相比要差，资金回收期长，回报率低。对非新区的投资也存在着一些问... Effective ways and methods for oil enterprises to improve their investment and utilization Geng Yanyi A Basic Analysis of Investment Results of Oil Enterprises in Recent Years Investment in the petroleum industry in recent years is mainly used in the exploration and development in the west and the investment in the main (old) oilfield in the east Relatively much less. However, the investment effect in the west is worse than that in the east, and the capital recovery period is long and the rate of return is low. There are also some questions about investing in non-new areas ...