Under the new regime, which was approved is still under review by the its Board of dDirectors of Ecopetrol held on July 2, 1999, its Ecopetrol´s participation will vary upon the volume of the productive well and the profitability factor (Factor de Rentabilidad or R Factor). As a result, for wells producing more than 560,000 b/d, the participation of Ecopetrol will be of 30% if the R Factor ranges between 1 and 1.52 ; If the R Factor is superior, then the participation rate will increase progressively up to 65% when the R Factor is equal or superior to 2.5. If the production from the field is less than 560,000 b/d then the participation of Ecopetrolthe associated private company will be of 30% range between 52.5 and 95% depending upon the Factor R.