﻿92 
  SANTA 
  MAKIA 
  OIL' 
  DISTRICT, 
  CALIFORNIA. 
  

  

  DETAILS 
  OF 
  THE 
  DEVELOPED 
  TERRITORY. 
  

  

  DEFINITION 
  OF 
  FIELDS. 
  

  

  Iii 
  the 
  following 
  paragraphs 
  are 
  discussed 
  the 
  more 
  important 
  

   details 
  regarding 
  tin* 
  structure, 
  geology, 
  oil 
  zones, 
  oil, 
  and 
  production 
  

   in 
  the 
  areas 
  in 
  which 
  development 
  is 
  well 
  under 
  way. 
  These 
  areas 
  

   within 
  the 
  Lompoc 
  and 
  Guadalupe 
  quadrangles 
  fall 
  naturally 
  into 
  

   two 
  fields— 
  the 
  Santa 
  Maria 
  field 
  and 
  the 
  Lompoc 
  field. 
  The 
  former 
  

   covers 
  the 
  whole 
  territory 
  between 
  the 
  Los 
  Alamos 
  and 
  Santa 
  Maria 
  

   valley-, 
  and 
  the 
  latter 
  is 
  used 
  to 
  designate 
  the 
  region 
  south 
  of 
  the 
  Los 
  

   Alamos 
  Valley. 
  A 
  third, 
  the 
  Arroyo 
  Grande 
  field, 
  covering 
  the 
  ter- 
  

   ritory 
  north 
  and 
  northwest 
  of 
  the 
  town 
  of 
  that 
  name 
  in 
  San 
  Luis 
  

   Ohispo 
  County, 
  lies 
  to 
  the 
  north 
  of 
  the 
  region 
  mapped, 
  but 
  is 
  briefly 
  

   discussed. 
  A 
  note 
  on 
  the 
  Huasna 
  field, 
  east 
  of 
  Arroyo 
  Grande, 
  is 
  

   also 
  appended. 
  

  

  SANTA 
  MARIA 
  FIELD. 
  

  

  CONTOUR 
  MAP. 
  

  

  WHAT 
  IT 
  SHOWS. 
  

  

  The 
  contour 
  ma]) 
  of 
  the 
  Santa 
  Maria 
  field 
  (PI. 
  X) 
  shows 
  the 
  bound- 
  

   aries 
  of 
  the 
  different 
  properties, 
  the 
  approximate 
  location 
  of 
  all 
  the 
  

   wells, 
  and 
  the 
  4 
  general 
  structure 
  of 
  the 
  field. 
  The 
  structure 
  is 
  indi- 
  

   cated 
  by 
  contours 
  showing 
  the 
  distance 
  below 
  sea 
  level 
  of 
  a 
  hypo-; 
  

   thetical 
  horizon, 
  zone, 
  or 
  bed, 
  which 
  just 
  reaches 
  sea 
  level 
  at 
  the 
  

   highest 
  part 
  of 
  the 
  axis 
  of 
  the 
  Mount 
  Solomon 
  anticline. 
  The 
  con- 
  

   tour 
  interval 
  is 
  100 
  feet. 
  By 
  means 
  of 
  this 
  map 
  the 
  direction 
  and 
  

   amount 
  of 
  dip 
  of 
  the 
  strata 
  in 
  the 
  oil-bearing 
  Monterey 
  shale 
  may 
  be 
  

   calculated 
  for 
  any 
  point 
  in 
  the 
  field, 
  as 
  the 
  contour 
  lines 
  show 
  the 
  

   direction 
  of 
  strike 
  (to 
  which 
  the 
  dip 
  is 
  at 
  right 
  angles), 
  and 
  the 
  hori- 
  

   zontal 
  distance 
  between 
  any 
  two 
  contours 
  is 
  the 
  distance 
  through 
  

   which 
  the 
  beds 
  dip 
  100 
  feet 
  at 
  that 
  particular 
  point. 
  

  

  BASIS 
  OF 
  CONTOUR 
  MAP. 
  

  

  The 
  property 
  lines 
  were 
  sketched 
  from 
  a 
  map 
  kindly 
  furnished 
  by 
  

   Frank 
  M. 
  Anderson. 
  The 
  wells 
  were 
  located 
  in 
  the 
  field 
  by 
  the 
  eye, 
  

   supplemented 
  by 
  pacing 
  and 
  in 
  some 
  instances 
  by 
  information 
  fur- 
  

   nished 
  by 
  the 
  managers 
  of 
  properties. 
  The 
  log 
  of 
  every 
  well 
  in 
  the 
  

   area 
  either 
  finished 
  or 
  down 
  any 
  considerable 
  distance 
  in 
  August, 
  

   1906, 
  was 
  used 
  in 
  the 
  determination 
  of 
  the 
  structure 
  and 
  the 
  com- 
  

   pilation 
  of 
  the 
  data 
  concerning 
  the 
  oil 
  zones. 
  All 
  additional 
  informa- 
  

   tion 
  available 
  up 
  to 
  January 
  15, 
  1907, 
  has 
  been 
  used 
  in 
  a 
  revision 
  of 
  

   the 
  contouring. 
  All 
  of 
  the 
  obtainable 
  surface 
  evidence 
  of 
  dip 
  and 
  

   strike 
  of 
  the 
  beds 
  was 
  also 
  used 
  in 
  the 
  preparation 
  of 
  the 
  map. 
  In 
  

   every 
  case 
  where 
  the 
  surface 
  and 
  well-log 
  evidence 
  were 
  at 
  variance 
  

  

  