PKODUCTION OF THE WELLS 267 



Statement of Production of Ebano and Caslano Wells— Continued 

 Well Barrels 



Laguna No. 11, from September 17, 1908, to November 30, 1911 131,426 



Laguna No. 14, from February 2, 1909, to November 30, 191 1 321,691 



Laguna No. 17, from May 19, 1909, to November 30, 1911 71,512 



Laguna No. 19, from May 17, 1909 to January 8, 1911 90, 100 



Laguna No 21, from August 11, 1910, to August 30, 1911 39,263 



Laguna No. 22, from July 18, 1909, to January 8, 191 1 62,070 



Laguna No. 23, from January 5, 1910, to January 8, 1911 1 l,25o 



Laguna No. 26, from March 30, 1910, to January 8, 1911 16,240 



Laguna No. 27, from July 7, 1910, to August 30, 191 1 83,400 



Dicha No. 6, from February 1, 1909, to January 15, 1911 38,413 



Dicha No. 8, from January 20, 1909, to August 30, 1911 ' 92,694 



Dicha No. 17, from July 30, 1910, to August 13, 1911 15,071 



Chijol No. 2, from December 22, 190.) to February 3, 1910 20,400 



Chijol No. 4, from December 22, 1909, to November 30, 1911 422,639 



Chijol No. 5, from June 1, 1911, to November 27, 1911 130,050 



Total Ebano production 10,653,822 



Casiano No. 1, from March 22, 1910, to August 14, 1910 17,238 



Casiano No. 2, from January 11, 1910, to August 14, 1910 29,743 



Casiano No. 6, from July 26, 1910, to August 10, 1910 150,000 



Casiano No. 7, from September 7, 1910, to December 15, 1912 19.000,000 



Total Casiano production 19,206,981 



Total Ebano production 10,65:5,822 



Grand total 29,860,803 



This table is of much interest as exhibiting the total production of 

 individual wells, from the first one, Pez No. 1, April 3, 1904, up to the 

 last, Chijol No. 5, completed June 1, 1911. The star wells of the two 

 groups are, of course, Pez No. 1, at Ebano, and No. 7, at Casiano, the 

 former still flowing 300 to 1,000 barrels daily in spite of water invasion 

 from its near-by neighbor, No. 6, although 7y 2 years old, and the latter, 

 Casiano No. 7, after having put 19,000,000 barrels into tankage in only 

 two years and a quarter, continuing to flow at the rate of 23.000 barrels 

 daily, accompanied by an output of 10, 000, 000 to 12,000,000 feel o\' gas, 

 the oil being entirely free from water, while only one-half mile distant 

 is its companion, No. 6, which was producing at the rate of 1 1.000 bar- 

 rels and increasing daily when it was successfully closed m August 10, 

 1910. An attempt was also made to shut in No. 7, but the seepages 

 around. and near it began to spout oil at the rah 1 of 2,000 to 3,000 barrels 

 daily, and hence, for fear of another Dos Bocas blow-out, Mr. Wylie 

 opened up the well and then gradually closed the gate valve until the 

 pressure registered only 290 pounds to the square inch instead of 585 

 pounds, the rock pressure of the well and the same as that shown at No, 6, 



XIX— Bull. Geol. Soc. Am., Vol. 24, 1912 



