Condensate MSDS

MATERIAL SAFETY DATA SHEET

CONDENSATE

MSDS No BR-003

Rev. Date 11/04

Burlington Resources, Inc. 717 Texas Avenue, Suite 2100

Houston, TX 77002

IMPORTANT: Read this MSDS before handling and disposing of this product and pass this information on to employees, customers, and users of this product.

1. GENERAL MATERIAL IDENTITY

CONDENSATE

COMMON NAME(S) Gas Liquid, Condensate Liquids, Drip Gas, Natural Gas Condensate and SYNONYMS CHEMICAL FAMILY Hydrocarbon, aliphatic CHEMICAL FORMULA

[C2 – C20] H2n+2

CAS NUMBER 64741-47-5 US DOT DESCRIPTION

Gas Drips, Hydrocarbon HAZARD CLASS 4 (Flammable Liquid) ID NO. UN1864 Reportable Quantity: Not Applicable Listed on the TSCA Inventory

TELEPHONE NUMBERS

EMERGENCY Burlington Resources: (800) 592-4822 CHEMTREC: (800) 424-9300

GENERAL ASSISTANCE (M-F) Burlington Resources: (713) 624-9000

PREPARATION DATE: March, 1990 REVISION DATES: #1: May, 1994; #2: May, 1999; #3: November 2004 (Previous MSDS No. MO-005 NFPA/HMIS:

Hazard Rating 4 – Extreme 3 – High 2 – Moderate 1 – Slight 0 – Insignificant

NFPA Fire 3 Health 2 Reactivity 0

HMIS Fire 3 Health 2 Physical Hazard 0

2. SUMMARY OF HAZARDS DANGER HIGHLY FLAMMABLE! OSHA/NFPA Class 1A flammable liquid. KEEP AWAY FROM HEAT, SPARKS, AND OPEN FLAME! May cause irritation or more serious skin disorders. May be harmful if inhaled. May cause irritation of the nose, throat, and lungs, headache, dizziness, drowsiness, loss of coordination, fatigue, nausea and labored breathing. May cause irregular heartbeats. Avoid prolonged or repeated liquid, mist, and vapor contact with eyes, skin, and respiratory tract. If swallowed, do not induce vomiting since aspiration into the lungs may cause chemical pneumonia. Obtain prompt medical attention. Wash hands thoroughly after handling. MSDS ID NO. BR003 Revised NOV04 Page 1 of 8

CONDENSATE MSDS NO. BR-003

Section 2 Continued… Sulfur compounds in this material may decompose to release hydrogen sulfide gas which may accumulate to potentially lethal concentrations in enclosed air spaces. Vapor concentrations of hydrogen sulfide above 50 ppm, or prolonged exposure at lower concentrations, may saturate human odor perceptions so that the smell of gas may not be apparent. DO NOT DEPEND ON THE SENSE OF SMELL TO DETECT HYDROGEN SULFIDE! IDLH for hydrogen sulfide is 100 ppm. Hydrogen sulfide is listed as an EPA Extremely Hazardous Substance. Contains benzene, a chemical known to cause cancer in humans. May cause diseases of the blood forming organs, such as leukemia, adverse effects on the immune system and adverse reproductive effects. Benzene may cause irritation to the eyes, skin and lungs, central nervous system effects and irregular heartbeats. IDLH for benzene is 500 ppm. Some components of this material such as benzene, toluene and xylene have been shown to produce fetal toxicity and/or reduce female or male reproductive capacity in laboratory animals.

3. COMPONENTS AND EXPOSURE LIMITS COMPONENT1 CAS2 NUMBER % COMPOSITION BY WEIGHT (all vary)

BUTANE 106-97-8 AP 7-9 PENTANE 109-66-0 AP 64-66 HEXANE (N-HEXANE) 10-54-3 AP 7-9 OTHER HEXANE ISOMERS N/AP AP 6-8 BENZENE (1,2,3) 71-43-2 AP 0.2-0.4 TOLUENE 108-88-3 AP 1-2 XYLENE 1330-20-7 AP 1-5 HYDROGEN SULFIDE 7783-06-4 <1% OCCUPATIONAL EXPOSURE LIMITS

SUBSTANCE ACGIH TLV OSHA PEL3 UNITS TYPE BUTANE 1000 800 ppm TWAPENTANE N/DA 750 ppm STEL 600 600 ppm TWAHEXANE (N-HEXANE) 50 50 ppm TWABENZENE (1,2,3) 2.5 5 ppm STEL 0.5 1 ppm TWATOLUENE N/DA 150 ppm STEL 50 100 ppm TWAXYLENE 150 150 ppm STEL 100 100 ppm TWAHYDROGEN SULFIDE 15 15 ppm STEL 10 10 ppm TWAOther applicable exposure guidelines: OIL MIST 10 N/DA Mg/m3 STEL 5 5 Mg/m3 TWANote: This material is a natural product, therefore composition can vary. Since specific exposure standards or control limits have not been established for this material, the exposure limits shown here are suggested as minimum control guidelines. 1Carcinogen displayed after Component Name, Listed by (1) NTP, (2) IARC, (3) OSHA, (4) other. 2See abbreviations on last page 3The OSHA exposure limits were changed in 1995 due to a federal court ruling. Burlington Resources has chosen to list the 1989 OSHA exposure

limits in this document as they are generally more stringent and therefore more protective than the current exposure limits. (29 CFR 1910.1000)

MSDS NO. BR003 Revised NOV04 Page 2 of 8


4. FIRE AND EXPLOSION FLASH POINT (METHOD)

AUTOIGNITION TEMP. (METHOD)

FLAMMABLE LIMITS (% VOLUME IN AIR)

< 100° F AP < 399° F LOWER: AP 0.8 UPPER: AP 12.5 FIRE AND EXPLOSION HAZARDS

HIGHLY FLAMMABLE! This material releases flammable vapors at or below ambient temperatures. When mixed with air in certain proportions and exposed to an ignition source, these vapors can burn in the open or explode in confined spaces.

Flammable vapors may travel long distances along the ground before reaching a point of

ignition and flashing back. Open top tanks involved in a fire have a potential for "boil-over" if water or water-in-oil emulsion

is at the bottom of the tank. Boil-over may result in a large expulsion of burning oil from the tank, greatly increasing the fire area.

For determining National Electrical Code (NEC) Hazardous (Classified) location requirements

for electrical installations, consider this material Class I, Group D. EXTINGUISHING MEDIA

Foam Dry chemical

Carbon dioxide Halon Water spray and fog can cool the fire but may not extinguish the fire. SPECIAL FIREFIGHTING PROCEDURES

For fires involving this material, do not enter any enclosed or confined fire space without proper protective equipment. This may include self-contained breathing apparatus to protect against the hazardous effects of combustion products and oxygen deficiencies. If firefighters cannot work upwind to the fire, respiratory protective equipment must be worn unless and until atmospheric monitoring indicates that such protection is not required. Apply water from as far a distance as possible. If a leak or spill has not ignited, water may be used to disperse vapors (keep spilled material out of sewers, can be explosive). Improper use of water and extinguishing media containing water may cause frothing which can spread the fire over a larger area. Water fog and spray are of value for cooling tank shells and surfaces exposed to fire, but may not achieve extinguishment. Stop leaks and shut off ignition sources if safe to do so. Isolate for ½ mile in all directions if large container (tanker or storage vessel) is involved in fire. Do not allow flares, smoking of flames in hazard area. Immediately withdraw from fire if vessel venting noise increases or the container becomes discolored. Unusual fire and explosion hazard: Vapors can be heavier than air and may travel some distance to ignition source and flash back. Containers may explode in heat or fire.



5. HEALTH HAZARDS SUMMARY OF ACUTE HEALTH HAZARDS

Inhalation: Vapors may cause nasal and respiratory tract irritation, central nervous system effects, anemia, irregular heart rhythm and behavioral changes. Symptoms may include excitation, euphoria, contracted eye pupils, dizziness, drowsiness, fatigue, nausea, headache, loss of reflexes, tremors, convulsions, seizures, loss of consciousness, coma, depression, diarrhea and vomiting. Eye: Liquid can cause severe irritation if not removed immediately. Hot liquid and vapors can result in burns. Cold vapors are irritating. Skin Contact: Liquid can cause irritation. Hot liquid can cause severe burns. Ingestion: Harmful or fatal if swallowed. Burning sensation of mouth and throat. Severe gastric distress may result. Vomiting may occur; if aspirated, may cause chemical pneumonitis.

Note: Sulfur compounds in this material may decompose to release hydrogen sulfide gas which may accumulate to potentially lethal concentrations in enclosed air spaces. Vapor concentrations of hydrogen sulfide above 50 ppm, or prolonged exposure at lower concentrations, may saturate human odor perceptions so that the smell of gas may not be apparent. DO NOT DEPEND ON THE SENSE OF SMELL TO DETECT HYDROGEN SULFIDE! Contact with this material or hydrogen sulfide vapors may irritate the eyes, skin and respiratory tract.

SUMMARY OF CHRONIC HAZARDS AND SPECIAL HEALTH EFFECTS

Inhalation: Repeated and prolonged inhalation of vapor components may have specific health effects (see COMMENTS below). Eye: Continued and prolonged vapor or liquid contact can cause injury to the eye and lids. Symptoms include redness, tearing and blurred vision. Skin Contact: Prolonged and repeated contact can cause skin lesions and in open wounds may be partially absorbed to form slow healing lesions. Symptoms include cracking, redness, itching and inflammation. On repeated contact may produce chronic dermatitis or warty growths which may become skin cancer. SOME OF THE COMPONENTS CAN BE ABSORBED THROUGH THE INTACT SKIN. Ingestion: Harmful or fatal if repeatedly swallowed. Severe gastric distress may result. Not a likely route of exposure long-term.

COMMENTS Contains benzene, a chemical known to cause cancer in humans. Repeated and prolonged

exposure to benzene vapors may cause leukemia, aplastic anemia, or other blood disorders, immunotoxicity, reproductive harm or fetal toxicity.

Reproductive and neurotoxic effects have been associated with n-hexane, a component of this

material. Generally, human exposures to condensate are considerably lower than levels which have

caused adverse health effects in animal studies or human case studies. Adverse health effects are not expected to occur at exposure levels typically encountered during normal workplace activities where proper protective equipment and hygiene procedures are employed.

Avoid prolonged or repeated exposure. See Section 10 for Additional Toxicological

Information.



6. PROTECTIVE EQUIPMENT / CONTROL MEASURES RESPIRATORY A NIOSH/MSHA-approved air-purifying respirator with an organic vapor cartridge may be

appropriate under certain circumstances where airborne concentrations may exceed the exposure limits in Section 3. Where work conditions may generate airborne mists of the material, also use a high-efficiency particulate pre-filter.

NOTE: The protection provided by air-purifying respirators is limited. Use a positive pressure air-supplied respirator if there is any potential for an uncontrolled release, if exposure levels are not known, or if concentrations exceed the protection limits of the air-purifying respirator. Consult a health and safety professional for guidance in respirator selection. Respirator use should comply with OSHA 29 CFR 1910.134

EYE Eye protection should be worn. If there is potential for splashing or spraying, chemical protective goggles and/or a face shield should be worn. If contact lenses are worn, consult an eye specialist or a safety professional for additional precautions. Suitable eye wash water should be available in case of eye contact with this material.

SKIN Avoid all skin contact with this material. If conditions of use present any potential for skin contact, clean and impervious clothing such as gloves, apron, boots, and facial protection should be worn. Neoprene, Nitrile, Butyl Rubber or Viton glove material is recommended.

Non-impervious clothing which accidentally becomes contaminated with this material should be removed promptly and not reworn until the clothing is washed thoroughly and the contamination is effectively removed. Discard material-soaked leather goods.

ENGINEERING CONTROLS

Where possible, use adequate ventilation to keep vapor and mist concentrations of this material below the Occupational Exposure Limits shown in Section 3. Electrical equipment should follow National Electrical Code (NEC) standards. Use non-sparking tools where liquids or vapors from the oil may be generated at flammable concentrations.

OTHER HYGIENIC AND WORK PRACTICES

Use good personal hygiene practices. If skin contact should occur, material should be removed from the skin with a waterless hand cleaner, and the affected area should then be washed with a mild soap and water. Wash hands and other exposed areas thoroughly before eating, drinking, smoking or using toilet facilities. Do not smoke, drink or eat in areas where this product is stored or handled.

PERSONAL AND AREA MONITORING

Direct reading indicating tubes are available for hydrocarbons and combustible gas monitors may be used to test for hydrocarbons and ignitable atmospheres. Specific methods for individual components should be conducted according to NIOSH and/or OSHA directives.

7. EMERGENCY AND FIRST AID INHALATION Immediately remove personnel to area of fresh air. For respiratory distress, give oxygen,

rescue breathing, or administer CPR (cardiopulmonary resuscitation) if necessary. Obtain prompt medical attention.

EYE CONTACT Flush eyes with clean, low-pressure water for at least 15 minutes, occasionally lifting the eyelids. If pain or redness persists after flushing, obtain medical attention. If eye is exposed to hot liquid, cover eyes with cloth and SEEK MEDICAL ATTENTION IMMEDIATELY.

SKIN CONTACT Immediately remove contaminated clothing. Wash affected skin thoroughly with soap and water. If irritation persists, obtain medical attention. In case of hot oil liquid exposure, do not remove clothing or treat – wash only unburned area and SEEK MEDICAL ATTENTION IMMEDIATELY. Do not use solvents to clean at any time.

INGESTION Do not induce vomiting. Seek medical attention. SPECIAL INSTRUCTIONS

Hydrogen sulfide may overcome workers or rescuers without adequate warning. Ensure that the area is free of hydrogen sulfide.

BIOLOGICAL MONITORING

Biological monitoring may indicate exposure level. Consult an occupational health physician if overexposure is suspected.

PRE-EXISTING CONDITIONS

Personnel with pre-existing central nervous system disease, skin disorders, chronic respiratory diseases, or impaired liver or kidney function should avoid exposure to this product.



8. SPILL AND DISPOSAL PRECAUTIONS IF MATERIAL IS SPILLED OR RELEASED

Contain spill, evacuate non-essential personnel, and safely stop flow using dams or enclosures. On hard surfaces, spilled material may create a slipping hazard. Equip cleanup crews with proper protective equipment (as specified in Section 6) and advise of hazards (Fire in Section 4 and Health in Section 5). Clean up by recovering as much spilled or contaminated materials as possible and placing into closed containers. Consult with an environmental professional for the federal, state and local cleanup and reporting requirements for spills and releases.

WASTE DISPOSAL METHODS

Maximize recovery for reuse or recycling. Consult environmental professional to determine if state or federal regulations would classify spilled or contaminated materials as a hazardous waste. Use only approved transporters, recyclers, treatment, storage or disposal facilities. Comply with all federal, state and local laws pertaining to waste management.

STORAGE AND HANDLING

Store and transfer to grounded and approved containers away from heat, sparks and flames. Use only explosion proof or intrinsically safe electrical equipment where product is stored or handled.

9. PHYSICAL, CHEMICAL AND REACTIVITY DATA (Note: Data varies with source, treatment and shipping methods.)

BOILING POINT PH <0 TO 300oF N/AP FREEZING POINT DRY POINT N/AP N/AP SPECIFIC GRAVITY (H20 = 1 @ 39.2oF) VOLATILE CHARACTERISTICS <1.0 Appreciable (Volume % volatile @ ambient temp = 100) VISCOSITY UNITS, TEMP SOLUBILITY IN WATER N/DA Negligible VAPOR PRESSURE (Method) STABILITY Varies Stable VAPOR SP GR (AIR = 1 AT 60 - 90oF) HAZARDOUS POLYMERIZATION N/DA Not expected to occur OTHER CHEMICAL REACTIVITY N/AP OTHER PHYSICAL AND CHEMICAL PROPERTIES

N/AP

APPEARANCE AND ODOR Colorless to yellowish liquid. Petroleum hydrocarbon odor. May have odor of rotten eggs.

CONDITIONS TO AVOID Heat, sparks, and open flame. MATERIALS TO AVOID Strong acids, alkalis, and oxidizers such as liquid chlorine and oxygen. HAZARDOUS DECOMPOSITION PRODUCTS

Burning or excessive heating may produce carbon monoxide and other harmful gases or vapors including oxides of sulfur and nitrogen.



10. ADDITIONAL PRECAUTIONS HANDLING, STORAGE AND DECONTAMINATION PROCEDURES

Store and transport in accordance with all applicable laws. KEEP AWAY FROM HEAT, SPARKS, AND OPEN FLAME! KEEP CONTAINERS CLOSED, PLAINLY LABELED AND OUT OF CLOSED VEHICLES! Containers should be able to withstand pressures expected from warming or cooling in storage. Ground all drums and transfer vessels when handling. Store in cool (80F or below), well-ventilated location. All electrical equipment in storage and/or handling areas should be installed in accordance with applicable requirements of the National Electrical Code (NEC).

KEEP OUT OF REACH OF CHILDREN!

Empty containers retain some liquid and vapor residues, and hazard precautions must be observed when handling empty containers.

GENERAL COMMENTS

The information and conclusions herein reflect normal operating conditions and may be from sources other than direct test data on the mixture itself.

TOXICOLOGICAL INFORMATION

The information found in this section is written for medical, toxicology, occupational health and safety professionals. This section provides technical information on the toxicity testing of this or similar materials or its components. If clarification of the technical content is needed, consult a professional in the areas of expertise listed above.

Condensate is not listed as a human carcinogen by OSHA, NTP or IARC. Studies have shown that when laboratory animals are exposed to high does of whole gasoline vapor (similar to this product), kidney damage and cancer was observed in rats; liver cancer in mice.

Contains benzene, a chemical known to cause cancer in humans recognized by OSHA, NTP,

ACGIH and IARC. Repeated and prolonged exposure to benzene vapors may cause adverse effects on the heart and central nervous system, diseases of the blood forming organs, such as leukemia, and adverse effects on the immune system. In animal studies and in workers with chronic benzene poisoning, alterations in structure of chromosomes in bone marrow and white blood cells have been observed. Studies with laboratory animals indicate that exposure to high levels of benzene vapor may cause reproductive effects and adverse effects on offspring of pregnant animals. Benzene is controlled by OSHA standard 29CFR 1910.1028.



11. REGULATORY INFORMATION SARA TITLE III Section 311 - SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT Section 311/312 Hazard Categories: Immediate (acute) health hazard Delayed (chronic) health hazard Fire hazard Section 313: This product contains the following chemicals subject to the reporting requirements established by SARA Title III Component Name: BENZENE CAS #: 71-43-2 TOLUENE CAS #: 108-83-3 HEXANE (N-HEXANE) CAS #: 110-54-3 HYDROGEN SULFIDE CAS #: 7783-06-4 TOXIC SUBSTANCES CONTROL ACT (TSCA) All components of this product are listed on the TSCA Inventory. COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION AND LIABILITY ACT (CERCLA) This material is covered by CERCLA's PETROLEUM EXEMPTION. (Refer to 40 CFR 307.14)

Abbreviations: EQ = equal AP = approximately N/AP = not applicable LT = less than UK = unknown N/DA = no data available GT = greater than TR = trace N/P = no applicable information found ACGIH CAS CFR DOT EPA HMIS IARC IDLH NFPA NIOSH NTP OSHA PEL SARA STEL TLV TSCA TWA UN

American Conference of Governmental Industrial Hygienists Chemical Abstracts Service (number) Code of Federal Regulations Department of Transportation Environmental Protection Agency Hazardous Material Identification System by Paint and Coating Manufacturers Association International Agency for Research on Cancer Immediately Dangerous to Life and Health National Fire Protection Association National Institute of Occupational Safety and Health National Toxicology Program Occupational Safety and Health Administration Permissible Exposure Limit (OSHA) Superfund Amendments and Reauthorization Act Short Term Exposure Limit (15 minute maximum) Threshold Limit Value (ACGIH) Toxic Substance Control Act Time Weighted Average United Nations

DISCLAIMER OF LIABILITY The information in this MSDS was obtained from sources which we believe are reliable. It is prepared in accordance with 29 CFR 1910.1200 and other applicable regulations affecting the data included. HOWEVER, THE INFORMATION IS PROVIDED WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED, REGARDING ITS CORRECTNESS. Since the actual use of the product by others is beyond the control of Burling Resources, it is the responsibility of the user to evaluate the toxicity or hazard arising out of the actual use. Additional information may be required when unusual or exceptional circumstances are involved in the product’s actual use. The conditions or methods of handling, storage, use and disposal of the products are beyond our control and may be beyond our knowledge. FOR THIS AND OTHER REASONS, BURLINGTON RESOURCES DOES NOT ASSUME RESPONSIBILITY AND EXPRESSLY DISCLAIMS LIABILITY FOR LOSS, OR DAMAGE OR EXPENSE ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE HANDLING, STORAGE, USE OR DISPOSAL OF THIS PRODUCT. This MSDS was prepared and is to be used only for this product. If the product is used as a component in another product, this MSDS information may not be applicable.

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