The Magdalena pool or region extends along the river valley for several hundred miles. The fields already occupied are mainly on the east side. In this section the first oil gusher of Colombia was brought in not far from Barranca Bermeja, about 400 miles south of Barranquilla. A second well 2270 feet deep shot oil over the derrick several hours before it could be capped. It was rated at from 2000 to 20,000 barrels daily. Steady flow is estimated at 6000 to 8000 barrels daily. The oil, which is dark with some asphalt, gives about 30 per cent gasoline, 6 of kerosene, 20 lubricating oil, and 12 asphalt. A pipe line and wagon road are being constructed from the three wells drilled near the Colorado River 35 miles to Barranca Bermeja where a refinery has been erected. It is said that this is to supply Colombia with gasoline, kerosene, and lubricants at prices not above those of New York. The use of residual fuel oil on the river steamers will greatly facilitate their operation. It is likely that a larger refinery will be erected at Cartagena or as rumored on an island at the mouth of the Magdalena, but the cost of reported pipe lines 300 or 400 miles long in this region would be prohibitive. Tank steamers will well serve the purpose. Higher up the river near Honda is the Tolima field where live seepages occur and a well has been drilled. [Many locations have been secured in a stretch of several hundred miles along the valley.] This field includes the upper Magdalena Basin, with which are classed the groups on the edge of the San Martín and Casanare plains east of the Cordillera. In the Orinoco Basin oil has been seen floating on the surface of the rivers. The Maracaibo Basin, which is chiefly in Venezuela, has a section running over into Colombia where the Barco concession is located. An area of more than a million acres is occupied by an American company. Here oil seepages include some wonderful springs. Oil from one of these runs a small refinery which produces 25 barrels a day. The oil with a loss of only 1.1 per cent is said essentially to match the high grade Pennsylvania oil, selling for $4.00 a barrel at the well. Wells were first drilled on the Venezuelan side of the Rio de Oro, tributary to the Catatumbo; later on the Colombian side. There is further a Pacific district extending north and south from Buenaventura a distance of 60 or 70 miles, from Quibdó on the Atrato to Cali on the Cauca with a small section on the coast. The probable productive area is 18 miles but none is proved.