Exhibit 10.11(a)
XXXXXX PETROLEUM COMPANY,
LIMITED PARTNERSHIP
00000 XXXXXXXXX XXXXXXX, XXXXX 0000
XXXXXXX, XXXXX 00000-0000
October 14, 1996
Xx. X. X. Xxxxxxxx
Chevron Chemical Company
0000 XxXxxxxx
Xxxxxxx, Xxxxx 00000
RE: CCC Product Sale and Purchase Agreement
Article XII, Section 12.1 - Measurement and Analysis
Dear Xx. Xxxxxxxx:
Please reference Section 12.1 of the above referenced agreement which
addresses measurement techniques for Products that Xxxxxx Petroleum Company,
Limited Partnership ("Xxxxxx XX"), through its affiliate, Xxxxxx Gas Liquids,
buys and/or sells from and/or to Chevron Chemical Company ("Chevron Chemical").
As written, this section prescribes mass measurement for Ethane and E/P Mix
Products and volumetric measurement for other Products.
Prior to the combination of NGC Corporation with the Xxxxxx Petroleum
Company ("Xxxxxx") and Natural Gas Business Unit divisions of Chevron U.S.A.
Inc., mass measurement was used to measure all Products sold to and/or purchased
from Chevron Chemical. It was not intended that the measurement techniques
previously used by Xxxxxx would change once the merger was completed.
Keeping with Xxxxxx'x prior practice, Xxxxxx XX and Chevron Chemical
mutually agree that the volume of all Products sold to Chevron Chemical shall be
measured on a mass basis. For invoice purposes, the mass quantity shall be
converted to a volumetric basis (gallons) per latest applicable API/GPA
standards or publications.
If you agree with the foregoing, please evidence your agreement by
executing both of the originals of this letter enclosed herewith, keep one for
your records and return the other to me.
For the purpose of this letter agreement, all capitalized terms as used herein
shall have the same meanings as set forth in the CCC Product Sale and Purchase
Agreement dated effective as of September 1, 1996 entered into between Xxxxxx XX
and Chevron Chemical.
Very truly yours,
/s/ Hunter Battle
Hunter Battle
Director- Liquid Assets
AGREED THIS 21 DAY OF OCT, 1996:
CHEVRON CHEMICAL COMPANY
By: /s/ X. X. Xxxxxxxx
---------------------
X. X. Xxxxxxxx
