Exhibit 4.11

English Translation of Chinese Original

Crude Oil Mutual Supply

Framework Agreement for Year 2017

between

PetroChina
Company Limited

and

China Petrochemical Corporation

January 2017



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Crude Oil Mutual Supply Framework Agreement for Year 2017

PetroChina Company Limited (PetroChina) and China Petrochemical Corporation (Sinopec), following
friendly consultations, have reached consensus on mutual supply of crude oil in the year of 2017 and hereby enter into this Agreement (this Agreement).



|I. | Mutual Supply and Cross Supply of Crude Oil
|-- | -------------------------------------------



| | 1. | Mutual supply of crude oil: In 2017, PetroChina shall supply Sinopec with 1.13 million tons of domestic
onshore crude oil, including 0.73 million tons of crude oil produced at the Changqing Oil Region, 0.32 million tons of crude oil produced at the Jizhong Oil Region, 50,000 tons of crude oil produced at the Erlian Oil Region and Tamtsag Oil
Region, and 30,000 tons of crude oil produced at PetroChina Zhejiang Exploration Company.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In 2017,
Sinopec shall supply PetroChina with 1.661 million tons of domestic onshore crude oil, including 0.50 million tons of crude oil produced at the Chunguang Oil Region, 0.37 million tons of crude oil produced at the Chunfeng Oil Region,
0.76 million tons of oil produced at the Tahe Oil Region, 26,000 tons of crude oil produced at the Yanqi Oil Region, and 5,000 tons of crude oil produced at the condensate unit of Sinopec Southwest Company.



| | 2. | The parties hereto shall, in principle, make available crude oil of the above supply and take delivery thereof
on an evenly distributed basis. The quarterly mutual supply of crude oil may be adjusted as necessary by mutual agreement thereon and in light of the availability of crude oil resources, price and the States macro-economic planning
requirements.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|II. | Quality of Crude Oil
|--- | --------------------

Matters with respect to the quality of the crude oil to be supplied hereunder shall be handled pursuant to applicable
provisions of SY7513-88 Technical Conditions of Crude Oil at Wellhead.



|III. | Quarterly Supply Agreements; Sales and Purchase Contracts on an Enterprise-by-Enterprise Basis
|---- | ----------------------------------------------------------------------------------------------

The parties hereto agree that quarterly supply agreements shall be entered into by and between the
Production Management Department of PetroChina and the Production Management Department of Sinopec in accordance with this Agreement. After the quarterly plans have been issued to the respective subsidiaries, PetroChinas relevant regional
companies (including its oil fields, refineries and pipeline companies) and Sinopecs relevant subsidiaries (including its oil fields and refineries) will enter into specific sales and purchase contracts with each other. The total quantities
and varieties of crude oil to be supplied under such contracts shall be consistent with those specified under the above quarterly supply agreements.



|IV. | Price of Crude Oil
|--- | ------------------

The price of crude oil to be supplied hereunder shall be settled on the basis of the benchmark crude oil price and the crude
oil premium mutually agreed between the parties.



|V. | Payment Guarantee
|-- | -----------------

Payment of the price of crude oil to be supplied hereunder shall be made on a timely basis and pursuant to the principles
agreed upon by the parties hereto. PetroChina and Sinopec agree to be guarantors, and to assume joint and several guarantee liabilities for the failure of timely payment of the price of crude oil and other amounts payable by their respective oil
refineries. The payer shall make timely payments to the payee upon receipt of and pursuant to the payment notice.



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|VI. | Miscellaneous
|--- | -------------



| | 1. | Both parties undertake that their subsidiaries will perform this Agreement strictly in accordance with the
terms hereof while maintaining the free flow of the downstream operations of their respective oil field enterprises. Any issues not covered hereunder shall be resolved through consultations between the parties hereto.
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | 2. | This Agreement shall be executed in four counterparts, with each of PetroChina and Sinopec to hold two. This
Agreement shall remain effective from January 1, 2017 to December 31, 2017.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                                             |  |                                                                  
|------------------------------------------------------------ |  | -----------------------------------------------------------------
|Production Management Department,
PetroChina Company Limited |  | Production Management Department,
China Petrochemical Corporation



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|--- |  |  |  | ------ |  | --- |  |  |  | ------
|By: |  |  |  |        |  | By: |  |  |  |       
|    |  |  |  |        | 
|    |  |  |  | , 2017 |  |     |  |  |  | , 2017



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