Carlo A. Favero, M. Hashem Pesaran, and Sunil Sharma, "A Duration Model of Irreversible OIl Investment: Theory and Empirical Evidence", Journal of Applied Econometrics, Vol. 9, Supplement, 1994, pp. S95-S112. There are 53 observations on 11 variables (DUR, SIZE, WATERD, GASRES,OPERATOR, P, VARDP, P97, VARP97, P98, VARP98). NOBS identifies the observation according the order of Table 1 in the paper. Thus NOBS=1 identifies Alwyn North, NOBS=53 identifies the last field in Table 1 (Thistle). Data are listed by observation and are in ASCII format.