File:Pico Canyon Oil Field Well No. 4, Plaque.jpg

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English: 1966 REGISTERED HISTORIC LANDMARK

FIRST COMMERCIAL OIL WELL IN CALIFORNIA CSO-4 PICO-4

National Register of Historic Places Collection 66000212

Taken Sept. 2 2018

state historical marker (no. 543)

“On this site stands cso-4 (pico-4), California’s first commercially productive well. it was spudded in early 1876, under the direction of Demetrius G. Scofield, later to become first president of standard oil company of California, and was completed at a depth of 300 feet on September 26, 1876, for an initial flow of 30 barrels of oil a day.

Later in the same year the well as deepened to 600 feet using what was perhaps the first steam rig employed in oil well drilling in California upon this second completion it produced at a rate of 150 barrels a day and is still producing after seventy-seven years.

The success of this well prompted formation of the pacific coast oil company a predecessor of standard oil company of California and led to the construction of the states first refinery nearby it was not only the discovery well of the Newhall field but was indeed a powerful stimulus to the subsequent development of the California petroleum industry.

Rededicated June 6, 1950

Standard Oil Company of California

Petroleum Production Pioneers INC.”

This is an image of a place or building that is listed on the National Register of Historic Places in the United States of America. Its reference number is 66000212.

Date

2 September 2018

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Samjobe

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This image was uploaded as part of Wiki Loves Monuments 2018.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:01, 3 September 2018		1,496 × 2,256 (927 KB)	Samjobe (talk \| contribs)	User created page with UploadWizard

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Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D40
Exposure time	1/125 sec (0.008)
F-number	f/5.6
ISO speed rating	400
Date and time of data generation	23:24, 2 September 2018
Lens focal length	18 mm
Orientation	Rotated 90° CW
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Ver.1.10
File change date and time	23:24, 2 September 2018
Y and C positioning	Co-sited
Exposure Program	Manual
Exif version	2.21
Date and time of digitizing	23:24, 2 September 2018
Meaning of each component	Y Cb Cr does not exist
Image compression mode	2
APEX exposure bias	5
Maximum land aperture	3.6 APEX (f/3.48)
Metering mode	Pattern
Light source	Unknown
Flash	Flash did not fire
DateTime subseconds	40
DateTimeOriginal subseconds	40
DateTimeDigitized subseconds	40
Supported Flashpix version	1
Color space	sRGB
Sensing method	One-chip color area sensor
File source	Digital still camera
Scene type	A directly photographed image
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Auto white balance
Digital zoom ratio	1
Focal length in 35 mm film	27 mm
Scene capture type	Standard
Scene control	Low gain up
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown

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File:Pico Canyon Oil Field Well No. 4, Plaque.jpg

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