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Roy Kass, Natural Gas Division, EIA March 20, 2002 Reno, Nevada Gasmart

Energy Information Administration’s Weekly Storage Survey and Web-based Information Dissemination. Roy Kass, Natural Gas Division, EIA March 20, 2002 Reno, Nevada Gasmart. AGA Survey History.

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Roy Kass, Natural Gas Division, EIA March 20, 2002 Reno, Nevada Gasmart

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  1. Energy Information Administration’s Weekly Storage Survey and Web-based Information Dissemination. Roy Kass, Natural Gas Division, EIA March 20, 2002 Reno, Nevada Gasmart

  2. AGA Survey History • At end of 1993 AGA began a voluntary survey of storage operators with purpose of enhancing information needed for storage operations. Their last report will be May 1. • Respondents are 42-43 companies who report storage data for 3 geographic regions. • Data are released on Wednesday afternoon of each week, with a delay of one day for some federal holidays.

  3. AGA Data Collection • AGA data form requests respondent information for 3 items per region (1 region per form): - Working gas volumes for company as of 9 a.m. Friday this week and this week last year - Maximum working gas in company-region reservoirs at any time during 1992-2001

  4. EIA Project Schedule 2001-2002 Oct. 12 AGA announces intent to stop weekly survey Oct. 30 Secretary directs EIA to conduct weekly survey Oct.- Dec. Meetings with agencies, industry, data customers, Federal Register Notice Jan. OMB clearance, contractor award Feb.-Mar Sample notification, system building Mar.-Apr. First data due 3/18; data and response work May 8-9 EIA data released, including data for 6-7 earlier weeks

  5. Methodological and Operational Issues • Estimation methodology and sample selection • Editing and imputation • Revision of estimates • Comparisons with AGA and EIA monthly series • Security, release time, and release product

  6. Estimation and Sample Selection I • Objectives are weekly estimates of working gas in storage for three regions and total U.S. • Approach was determined by available resources, time constraint, and customer/respondent desires for minimal change

  7. Estimation and Sample SelectionII • Sampled from monthly EIA-191 responses for October, 2001 within each region, target standard error five percent of estimate. • Certainty and noncertainty strata. Probability proportional to size for noncertainty companies • Initial sample of 50 companies. Expect to select new panel annually.

  8. Estimation and Sample Selection III • Estimation formula in each region is where N = all companies that report monthly for that region n = sample size for that region f = companies in region that failed edits or did not report this week WWG = weekly reports of working gas for sample members in region MWG = monthly reports of working gas for companies in region

  9. Estimate Revisions • We will allow (and encourage) revisions to submitted data of greater than 1 Bcf, especially if: • Errors in earlier reports are found • Reclassification between base and working gas

  10. Operational Issues • Comparisons between AGA and EIA series • Adequacy of response • Security equivalent to or more severe than AGA’s

  11. Description of EIA and AGA Storage Data • EIA will prepare two papers to assist analysts in using and assessing the data • Technical description of the survey and methodology (Mid April) • Comparison of methodologies and presentation of estimates for weeks where both EIA and AGA have collected data (shortly after EIA’s first publication)

  12. Comparison: EIA and AGA Storage Data AGA weekly End March: 18% difference EIA monthly

  13. April Working Gas:EIA-AGA Estimates

  14. Operational Concerns • We will be posting the weekly product to EIA’s web site • EIA’s site is available to all Internet users • Press and wire services are our friend • Will not allow fast-repeating robots to conduct “denial of service attacks”

  15. Getting EIA’s Information • Web-based dissemination • Http://www.eia.doe.gov • National Energy Information Center • 202-586-8800 • Email infoctr@eia.Doe.Gov

  16. Sample Screens fromEIA’s web site • EIA home page • Natural Gas Home Page • Natural Gas Data Publications • Natural Gas Monthly

  17. EIA Home Pagewww.eia.doe.gov Select Natural Gas

  18. Look Here For What We Are High- Lighting Publications Natural Gas Page

  19. Publications Page - Top Our data publications through These links. I select “Natural Gas Monthly”

  20. Annual Publications Section

  21. Natural Gas Monthly (1)

  22. Natural Gas Monthly (2) Tables are PDF as Published and Excel With historical data

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